Putra RP, Ramadhanti A, Setiawati FA, Azizah HJA, Puhka P. DO UNDERGRADUATE PHYSICS STUDENTS STUDYING ABROAD NEED OPTIMISM? A CROSS-COUNTRY CASE STUDY. Jur. Ilmh. Ilm. Ter. Un. Ja [Internet]. 2024 May 14 [cited 2025 May 17];8(1):90-103. Available from: https://mail.online-journal.unja.ac.id/JIITUJ/article/view/31880