Burhanudin, F., S. Endang Susilowati, and S. Haryani. “Development of Human Skeleton Comic to Enchance Student’s Motivation and Science Learning Outcomes”. Journal of Primary Education, Vol. 8, no. 1, Sept. 2018, pp. 101-7, https://journal.unnes.ac.id/sju/jpe/article/view/25390.