PROTOTIP BAHAN AJAR DEMOGRAFI. JURNAL PENELITIAN BIDANG PENDIDIKAN, [S. l.], v. 19, n. 2, p. 131–136, 2013. DOI: 10.24114/jpbp.v19i2.3069. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/penelitian/article/view/3069. Acesso em: 29 mar. 2026.