Dave-Ugwu PO, Onah AE, Chukwunwogor EO. Open Textbook Adoption: Implication for Chemistry Education in Nigerian Secondary Schools. wajofel [Internet]. 2020 Jul. 6 [cited 2024 Nov. 23];9(1):25-40. Available from: https://wajofel.org/index.php/wajofel/article/view/61