“Integrating Marine Problems As Suplementary for Trigonometry Topic in Nautical Fishing Vessel Program”. Edumatika : Jurnal Riset Pendidikan Matematika 6, no. 1 (June 30, 2023). Accessed August 6, 2026. https://ejournal.iainkerinci.ac.id/index.php/edumatika/article/view/1735.