Akram, E., El-Hiti, G. A., Ahmed, D. S., Rashad, A. A., Al Dahhan, W. H., & Yousif, E. (2019). Morphological, Liquid Crystal and Optical Band Energy Properties of Polyphosphates. Al-Nahrain Journal of Science, 22(2), 19-26. https://mail.anjs.edu.iq/index.php/anjs/article/view/2115