Sartika SB, Wulandari FE, Rocmah LI, Efendi N. Training of Natural Science Learning based Ethno-STEM for Teacher of Muhammadiyah Secondary School in Sidoarjo . ABDIMAS [Internet]. 2022 Apr. 30 [cited 2024 Oct. 12];5(1):1901-16. Available from: https://journal.umtas.ac.id/index.php/ABDIMAS/article/view/1155