Durant, Chrisly, 		Pongoh, Emma, AND 		Lumingkewas, Sonny.
" Pengaruh model pembelajaran problem based learning terhadap hasil belajar siswa kelas X pada materi struktur atom di SMA katolik santa rosa de lima tondano" <em>Oxygenius: Journal Of Chemistry Education</em> [Online], Volume 1 Number 1 (15 August 2019)