Van Son, Tran, 		Duc Manh, Lai, AND 		Manh Khai, Nguyen.
" Application of Biochar Derived from Pomelo Peels  and Corn Cobs for the Removal of Ammonium Residue  in Wastewater after Distillation Process" <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], Volume 41 Number 2S (15 November 2025)