Pretorius, Jannie, Josef de Beer, and Cherine Jackson. “The Possible Uses of Foldscopes As a Form of Frugal Science in the Biology Classroom As Well As in Out-of-School Science Activities”. Research in Social Sciences and Technology 8, no. 3 (August 12, 2023): 1-15. Accessed January 31, 2025. https://ressat.org/index.php/ressat/article/view/671.