Thi Kim Quyen Vo, Ngoc Huy Nguyen, Ngoc Hoa Pham, and Tan Phong Nguyen, “RECYCLING OYSTER SHELLS AND RED SCORIA STONE FOR BIO-DENITRIFICATION PROCESS IN WASTEWATER TREATMENT”, HUIT_OJS, vol. 25, no. S2_ICA, Sep. 2025.