Halimatul, M. J., S. M. Sapuan, M. Jawaid, M. R. Ishak, and R. A. Ilyas. “Water Absorption and Water Solubility Properties of Sago Starch Biopolymer Composite Films Filled With Sugar Palm Particles”. Polimery, vol. 64, no. 9, Jan. 2021, pp. 595-03, doi:10.14314/polimery.2019.9.4.