PUTRI, Mega Karina; A’ISYAH SHAFIRA , Salvia; RIA ERIKA MARITA DELLIMA , Beta. Variation of HPMC Concentration on The Stability of The Physical Properties of Peel Off Gel Coffee Arabica (Coffea arabica) Peel: Variasi Konsentrasi HPMC Terhadap Stabilitas Sifat Fisik Masker Gel Peel Off  Kulit Buah Kopi Arabika (Coffea arabica). Jurnal Riseta Naturafarm, [S. l.], v. 3, n. 1, p. 19–29, 2026. DOI: 10.70392/jrn.v3i1.1929. Disponível em: https://jrn.b-creta.com/index.php/jrn/article/view/25.. Acesso em: 22 apr. 2026.