Ayuchecaria, N., M. Ariefin, Yuliana, A. Rahman, and N. W. P. Mulyasari. “Coaching on Fabrication of Natural PH Indicators As an Alternate Synthetic Indicators at SMK Muhammadiyah Palangka Raya: Pelatihan Pembuatan Indikator PH Alami Sebagai Pengganti Indikator Sintetis Di SMK Muhammadiyah Palangka Raya”. NAWASENA : JOURNAL OF COMMUNITY SERVICE, vol. 1, no. 01, Mar. 2023, pp. 1-7, https://e-journal.upr.ac.id/index.php/JCS/article/view/8665.