HAWA, L. C.; FARHANRIKA, N. L.; AHMAD, A. M. Utilization of Lerak Juice (Sapindus rarak DC) as Natural Surfactant in the Liquid Washing Soap Production. Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering), [S. l.], v. 11, n. 1, p. 24–34, 2022. DOI: 10.23960/jtep-l.v11i1.24-34. Disponível em: https://jurnal.fp.unila.ac.id/index.php/JTP/article/view/5255. Acesso em: 26 nov. 2025.