Reconstruction and Scientific Explanation of Akar Kuning (Arcangelisia flava Merr.) From West Sumatra as Ethnomedicine and Source of Science Learning, Diliarosta, Skunda,, Efendi Annisa, Dillasamola Dwisari, Oktomalioputri Biomechy, and Ramadhani Rehani , Pharmacognosy Journal, January 2021, Volume 13, Issue 1, p.206-211, (2021)