Nga, Tran Thi Viet, Tong Minh Thang, To Thanh Loan, & Nguyen Thanh Phuong. " Synthesis and Characterization of ZnO/NiFe2O4 Materials." VNU Journal of Science: Mathematics - Physics [Online], 42.3 (2026): n. pag. Web. 20 Oct. 2026