Roy, Subrata Chandra, Lilufer Yeasmin, and Mahmudur Rahman. “Synthesis and Characterization of Niobium and Tungsten Substituted VOPO4”. Journal of Bangladesh Academy of Sciences 43, no. 1 (July 16, 2019): 31–37. Accessed October 20, 2024. https://banglajol.info/index.php/JBAS/article/view/42231.