Hasibuan, Dewi Astuti, and Asan Petrus. “Character Determination in Elementary School Children of Madrasah Ibtidaiyah Al Jamiyatul Washliyah in 2021 Based on the Fingerprint of Right Hands”. Journal of Medical Research and Health Sciences 4, no. 11 (November 17, 2021): 1545–1550. Accessed December 4, 2021. https://jmrhs.info/index.php/jmrhs/article/view/453.