Wisdom. J., OWO,. “Effects of Using Molecular Model Kits, Charts and Board Drawings in Teaching Chemical Bonding to Secondary School Chemistry Students in Anolga, Rivers State”. International Journal of Discoveries and Innovations in Applied Sciences 2, no. 12 (December 31, 2022): 42–49. Accessed November 22, 2024. https://openaccessjournals.eu/index.php/ijdias/article/view/1752.