Sudiana, I Ketut, and I Wayan Suja. “Basic Chemistry Practicum Handbook With Occupational Health and Safety (K3) to Prevent Work Accidents in Laboratory: Validity and Feasibility”. Jurnal Pendidikan dan Pengajaran 54, no. 1 (March 17, 2021): 181–189. Accessed May 7, 2024. https://ejournal.undiksha.ac.id/index.php/JPP/article/view/31934.