Azeez, H. S. and Mohammad, M. R. (2017) “Study the Structure, Morphology and Vibration Modes for K2CrO4 and K2Cr2O7”, Al-Nahrain Journal of Science, 20(2). Available at: https://anjs.edu.iq/index.php/anjs/article/view/81 (Accessed: 27August2021).