Volume 2736 AIP Conference Proceedings pubs.aip.org/aip/acp Toraja, Indonesia • 20 November 2021 Editors • Muhammad Kristiawan, Roni La’biran, Judith Ratu Tandi Arrang, Ahmed J. Obaid, Muthmainnah, Eka Apriani and Ahmed A Elngar UKI Toraja International Conference of Education and Science (UKITOICES) 2021 Proof