Sari, E., Awal, R., Martalasari, & Sudarmin. (2024). Validity and practicality of ethnovlog media on the production of typical Riau smoked fish (salai) as a science learning media. Biosfer: Jurnal Pendidikan Biologi, 17(1), 233–242. https://doi.org/10.21009/biosferjpb.32089