F. J. Polnaya, D. W. Marseno, and M. N. Cahyanto, “Physical Properties and Digestibility of Resistant Starch from Phosphorylated Sago Starches”, Pak. J. Nutr., vol. 17, no. 4, pp. 199–206, Mar. 2018, doi: 10.3923/pjn.2018.199.206.