FATHONI, Anang; RETNAWATI, Heri. Challenges and strategies of postgraduate students in online learning during the Covid-19 pandemic. Jurnal Prima Edukasia, [S. l.], v. 9, n. 2, p. 233–247, 2021. DOI: 10.21831/jpe.v9i2.37393. Disponível em: https://jurnal.uny.ac.id/index.php/jpe/article/view/37393. Acesso em: 8 jun. 2025.