S. P. Utami, E. O. Sari, V. Novriyani, D. M. Sari, N. A. S. Amin, and .-. Bahruddin, “Comparison of Carboxymethyl Cellulose (CMC) and Microcrystalline Cellulose (MCC) as Filler for Sago/Citric Based Bioplastic by Response Surface Methodology”, Int. J. Adv. Sci. Eng. Inf. Technol., vol. 11, no. 4, pp. 1507–1513, Aug. 2021.