Ekasari, Eksari, and Purnama Ningsih. 2020. “Utilization of Extract of Sambang Getih Leaves (Hemigraphis Colorata. Hall. F) As a Acid-Base Indicator”. Jurnal Akademika Kimia 9 (1). Palu, Sulawesi Tengah - INDONESIA:7-15. https://doi.org/10.22487/j24775185.2020.v9.i1.pp7-15.