“STUDY THE PROPERTIES OF THERMOTROPIC LIQUID CRYSTALS INDUCED BY HYDROGEN BONDING BETWEEN PYRIDYL- HETEROCYCLIC DERIVATIVES AND BENZOIC ACID, 4-HEPTYLOXYBENZOIC ACID OR 4-OCTYLOXYBENZOIC ACID”. Al-Nahrain Journal of Science 13, no. 4 (July 30, 2018): 62–69. Accessed November 24, 2024. https://mail.anjs.edu.iq/index.php/anjs/article/view/971.