(1)
Sofyan, S.; Failisnur, F.; Silfia, S.; Sy, S.; Ardinal, A. Natural Liquid Dyestuff from Wastewater of Gambier Processing (Uncaria Gambir Roxb) As Textile Dye. Int. J. Adv. Sci. Eng. Inf. Technol. 2020, 10, 2512-2517.