KURNIANINGSIH, A.; SUPRIADI, S. Analysis of Potassium (K) Levels in the Red Betel Leaf (Piper crocatum Ruiz & Pav) using Spectrophotometry Method. Media Eksakta, [S. l.], v. 18, n. 1, p. 58-63, 2022. DOI: 10.22487/me.v18i1.1501. Disponível em: https://jurnalfkipuntad.com/index.php/jme/article/view/1501. Acesso em: 27 jul. 2025.