Developing a Hygiene-Focused Colouring Book: An Innovative Educational Approach for Promoting Sanitation and Environmental Sustainability in Ghanaian Schools: Developing a Hygiene-Focused Colouring Book. JUST. Published online January 16, 2026:135-159. Accessed June 12, 2026. https://journal.knust.edu.gh/index.php/just/article/view/1789