PARAWANGSA, Hapipah Indar; LISTARI, Nening. Pengembangan Buku Saku Biologi Berbasis Problem Based Learning untuk Meningkatkan Hasil Belajar Siswa. Empiricism Journal, [S. l.], v. 4, n. 1, p. 225–232, 2023. DOI: 10.36312/ej.v4i1.1220. Disponível em: https://journal-center.litpam.com/index.php/empiricism/article/view/1220. Acesso em: 29 jan. 2026.