“Osing Language As Cultural Heritage: Challenges and Efforts”. SINGOSARI: Jurnal Perkumpulan Prodi Pendidikan Sejarah Se-Indonesia (P3SI) Wilayah Jawa Timur 2, no. 1 (October 21, 2025): 110–114. Accessed November 2, 2025. https://jurnal.sekawansiji.org/index.php/singosari/article/view/65.