Ida Ayu Triastuti and Yulius Dennis Ariel and Venny Pungus  (2023) THE ASSOCIATION OF INSOMNIA DEGREE WITH GRADE POINT AVERAGE PREDICATE IN STUDENTS OF THE FACULTY OF MEDICINE DUTA WACANA CHRISTIAN UNIVERSITY, YOGYAKARTA.  Jurnal Berkala Ilmiah Kedokteran Duta Wacana, 8 (1).  pp. 1-7.  ISSN 2476-8863