Fitriana, N., Prayitno, A. and Suprihadi, E. (2026) “Ethnoscience-PjBL for Water Pollution Treatment: Enhancing Chemistry Environmental Understanding and Mathematical Reasoning through Anaerobic Baffled Reactor (ABR)”, Jurnal Pembelajaran, Bimbingan, dan Pengelolaan Pendidikan, 6(5), p. 10. doi: 10.17977/um065.v6.i5.2026.10.