Getting error "undefined reference"

Question

Keep getting the following errors

"main.cpp:(.text+0x1c0): undefined reference to Student<int>::Add(int const&)'" "main.cpp:(.text+0x1fa): undefined reference toStudent::Remove()'" "main.cpp:(.text+0x21f): undefined reference to `Student::Clear()'"

Also "undefined reference to 'WinMain'

I am using classes templates and headers for a class project but I don't know where my errors are

main.cpp

#include <iostream>
#include <iomanip>
#include <string>
#include "student.h"

using namespace std;

int main()
{   Student <int> stud1;  // a student
char choice, answer;  // handles input from menu and controls loop
double score;             // the iten to be added to the end of the array

 do{
system("CLS");          // clears the screen
cout <<setw(30)<< " Main Menu\n\n\n";   // menu of options to add/remove or clear
cout << setw(15)<< " "<< "(1)- (A)dd\n\n";
cout << setw(15)<< " "<< "(2)- (R)emove \n\n";
cout << setw(15)<< " "<< "(3)- (C)lear\n\n\n";
cout << setw(35)<< "Enter Choice: ";cin >> choice;
choice = toupper(choice);
switch (choice)
{   case '1':
    case 'A':
            cout << "\nEnter score: "; cin >> score;
            if (stud1.Add(score)) // call to the add method
            {cout << score << "  Added\n\n";}
            break;
    case '2':
    case 'R':
            if(stud1.Remove())          // call to the remove method
            {cout << "\n\nRemoved\n\n";}
            break;
    case '3':
    case 'C':
            if (stud1.Clear())
            {cout << "\n\nCleared\n\n";}             // call to the clear method
            break;
 }
 cout << "Another Operation? "; cin >> answer; answer = toupper(answer);
}     while (answer == 'Y');  
cin.get();
return 0;   
}

---

student.cpp

#include <iostream>
#include <iomanip>
#include "student.h"

using namespace std;

// Adds a score to the end of the array
template <class T>
bool Student<T>::Add(const T &s)
{
    if (isFull()) return false;
    score[count] = s;
    count++;
    return true;
}

// Removes the last score of the array
template <class T>
bool Student<T>::Remove()
{
    if (isEmpty()) return false;
    score[count] = 0;
    return true;
}

// Clears the array of all contents
template <class T>
bool Student<T>::Clear()
{
    if (isEmpty()) return false;

    Print();

    for (count != 0; count--;)
    {
        score [count] = 0;
    }

    count = 0;

    return true;
}

// Checks if the array is full
template <class T>
const bool Student<T>::isFull()
{
    if (count == 5)
    {
        cout << "The array is full" << endl;
        return true;
    }
    return false;
}

// Checks if the array is empty
template <class T>
const bool Student<T>::isEmpty()
{
    if (count == 0)
    {
        cout << "The array is empty" << endl;
        return true;
    }
    return false;
}

// Prints the contents of the array from last to first
template <class T>
const void Student<T>::Print()
{
    cout << "Name: " << name << endl;

    for (int x = count; x != 0; x--)
    {
        cout << "Test score: " << score [x-1] << endl;
    }
}

// Explicit instantiation of class template to avoid compiler errors
template class Student<double>;
template class Student<int>;

---

student.h

// Class declaration
#include <string>
#include <iostream>

using namespace std;

// Guard
#ifndef STUDENT_H
#define STUDENT_H

template <class T>

class Student{
private:

    // Class data members
    string name;
    T score[5];
    int count;

public:
    // Constructor
    Student(int c = 0)
    {   
      cout << "Enter student name: ";
      cin >> name;

      count = c;
    } 

    // Destructor
    ~Student(){}

    // Member Functions
    bool Add(const T &);

    bool Remove();

    bool Clear();

    const bool isFull();

    const bool isEmpty();

    const void Print();
};

#endif
// Guard