Mamangkai, Eka, 		Rampe, Meytij, AND 		Kumajas, Jenny.
" Pembelajaran Kooperatif Tipe Game Tournament Pada Materi Ikatan Kimia di Kelas X IPA SMA Negeri 1 Kotamobagu" <em>Oxygenius: Journal Of Chemistry Education</em> [Online], Volume 1 Number 2 (27 December 2019)