H. V. T. Luong, Q. B. Huynh, D. N. Nguyen, V. N. H. Nguyen, Q. Q. V. Thieu, and T. P. Le, “Synthesis of Fe₃O₄@Zeolite NaA from rice husk ash for efficient methylene blue adsorption”, CTU J. of Inn. & Sus. Dev., vol. 17, no. 1, pp. 8-18, Mar. 2025.