1.
Vergidis D, Panagiotakopoulos C. Student Dropout at the Hellenic Open University: Evaluation of the Graduate Program, "Studies in Education". IRRODL [Internet]. 2002 Oct. 1 [cited 2024 Apr. 25];3(2). Available from: https://www.irrodl.org/index.php/irrodl/article/view/101