“Title Economic Performance and Efficiency of Traditional Milkfish Pond Farming in Coastal Ponds of Sungai Undang Village, Seruyan Regency”. 2026. JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah 11 (1): 162-70. https://doi.org/10.24815/sejarah.v11i1.442.