Esposo-Betan SM, Fresnido AM. CELPh’s Cooperative eBook Development Project: Implications for Future Directions. Philipp J Libr Inform Stud [Internet]. 2020 Dec. 21 [cited 2026 Oct. 4];40(1):5-16. Available from: http://www.phjlis.org/index.php/phjlis/article/view/28