Susilawati, S., A. Andriayani, Y. A. . Sihombing, I. R. . Saragi, N. . Masruchin, A. . Nuryawan, and M. . Irma. “Study of Ammonium Adsorption Mechanism in Hydrothermalized Pahae Natural Zeolites: Kinetic and Isotherm Adsorption, and Thermodynamics”. Trends in Sciences, vol. 22, no. 2, Dec. 2024, p. 8993, doi:10.48048/tis.2025.8993.