Fitria Y, Zulkarnaini AP. Development of Mathematics Integrated Science basic Concept Module about Classification Things to Improve Understanding of PGSD Students. IJEDS [Internet]. 2022 Feb. 17 [cited 2026 May 31];3(2):48-55. Available from: http://ijeds.ppj.unp.ac.id/index.php/IJEDS/article/view/339