“Title Economic Performance and Efficiency of Traditional Milkfish Pond Farming in Coastal Ponds of Sungai Undang Village, Seruyan Regency”. JIM: Jurnal Ilmiah Mahasiswa Pendidikan Sejarah, vol. 11, no. 1, Feb. 2026, pp. 162-70, https://doi.org/10.24815/sejarah.v11i1.442.