Awang, Nursyahidatul Azwa, et al. “Rhodopseudomonas Palustris Collagen-Like Recombinant Protein Purification Using an Aqueous Two-Phase System”. IIUM Engineering Journal, vol. 24, no. 1, Jan. 2023, pp. 40-56, https://journals.iium.edu.my/ejournal/index.php/iiumej/article/view/2468.