“VIBRATIONAL FREQUENCY AND THERMODYNAMIC PROPERTIES OF NEUTRAL AND IONIC PYRENE AND ITS DERIVATIVES”. FUDMA JOURNAL OF SCIENCES 3, no. 2 (April 7, 2023): 268–275. Accessed September 8, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1516.