Evy, et al. “The Relationship Between Fishermen Educational Level and Fishermen Knowledge Of Environmentally Friendly Fishing Gear In Cilincing Village, North Jakarta”. Biosfer: Jurnal Pendidikan Biologi, vol. 8, no. 2, Jan. 2018, pp. 35-38, doi:10.21009/biosferjpb.8-2.6.