Yusnitasari, A., S. Sarwi, and W. I. Wiwi Isnaeni. “Concept Mastery of Ethnoscience-Based Integrated Science and Life Skills Development of Elementary School Students”. Journal of Primary Education, Vol. 8, no. 4, Feb. 2019, pp. 93-01, https://journal.unnes.ac.id/sju/index.php/jpe/article/view/29111.