Luong Huynh Vu Thanh, Tran Nguyen Phuong Lan, Tran Thi Bich Quyen, Ha Quoc Nam, Le Phuoc Bao Tho, “Synthesis and characterization of Fe3O4@SiO2 sub-nano core/shell with SiO2 derived from rice husk ash”, UD-JST, vol 18, số p.h 6, tr 52–56, tháng 6 2020.