S. Al Rashdi, N. R. Lakkimsetty, and H. A. Al Zaabi, “Hybrid Leachate Treatment with Date Pit Tannins and Persulfate AOP: A Statistical Approach”, Eng. Technol. Appl. Sci. Res., vol. 16, no. 3, pp. 35515–35522, Jun. 2026.