EFFENDI, Effendi; SINENSIS, Arini Rosa; FIRDAUS, Thoha; SUGIYONO, Ilham Wijaya. Validity of The Ethno-Stem PjBL Model for Optics Learning Based On The Local Context of East Oku. Islamic Journal of Integrated Science Education (IJISE), [S. l.], v. 5, n. 2, p. 171–181, 2026. DOI: 10.30762/ijise.v5i2.9647. Disponível em: https://jurnalfaktarbiyah.iainkediri.ac.id/index.php/ijise/article/view/9647. Acesso em: 2 sep. 2026.