ANDASURYANI, Andasuryani; SANTOS, Santos; IFMALINDA, Ifmalinda. Evaluation of Catechin Content in Gambir Leaf Herbal Tea Using NIR Spectroscopy with PLS and MLR. Jurnal Keteknikan Pertanian, [S. l.], v. 14, n. 1, p. 64–80, 2026. DOI: 10.19028/jtep.014.1.64-80. Disponível em: https://journal.ipb.ac.id/jtep/article/view/70570. Acesso em: 21 jun. 2026.