SULMAN, L. Isolation of piperine from black pepper (Piper nigrum) in the provision of standard compounds for natural chemical practice and research activities. Jurnal Pijar Mipa, [S. l.], v. 16, n. 5, p. 683–687, 2021. DOI: 10.29303/jpm.v16i5.2981. Disponível em: https://jurnalfkip.unram.ac.id/index.php/JPM/article/view/2981. Acesso em: 27 jan. 2023.