The Development of Student Worksheets Based Problem Based Learning on Amine Topics for 3rd Grade of Senior High School. Entalpi Pendidikan Kimia, [S. l.], v. 3, n. 3, p. 27–35, 2022. DOI: 10.24036/epk.v3i3.274. Disponível em: http://entalpipendidikan.ppj.unp.ac.id/index.php/epk/article/view/274. Acesso em: 24 oct. 2026.