ABDULLAH , S. N. F. Kesan Proses Pengoksidaan daripada Ekstrak Tumbuhan Rosel (Hibiscus Sabdariffa Var. Ukmr-2) Kering di Bahagian yang Berbeza. Politeknik & Kolej Komuniti Journal of Engineering and Technology, Putrajaya, Malaysia, v. 5, n. 1, p. 151–157, 2020. Disponível em: https://app.mypolycc.edu.my/journal/index.php/PMJET/article/view/288. Acesso em: 24 nov. 2024.