Vishaka, E., and F. Loretta. “GROWTH AND STUDIES OF PURE AND AMMONIUM OXALATE MONOHYDRATE DOPED POTASSIUM DIHYDROGEN PHOSPHATE SINGLE CRYSTALS”. Journal of Advanced Scientific Research, Vol. 11, no. 02, May 2020, pp. 127-30, https://sciensage.info/index.php/JASR/article/view/483.