Rampi, Oktaviani, 		Pongoh, Emma, AND 		Caroles, Joice.
" Penerapan Model Pembelajaran Problem Based Learning (Pbl) Pada Materi Asam Basa Siswa Kelas Xi Ipa Di Sma Negeri 1 Tenga" <em>Oxygenius: Journal Of Chemistry Education</em> [Online], Volume 3 Number 2 (31 December 2021)