2026. 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. 11, 1 (Feb. 2026), 162–170. DOI:https://doi.org/10.24815/sejarah.v11i1.442.