Firmansyah, M. A., Yuliani, N., Nugroho, W. and Bhermana, A. (2013) “Suitability of Tidal Swamp for Rubber Plantation in Three Villages of Ex Rice Mega Project, Pulang Pisau Regency, Central Kalimantan Province”, Jurnal Lahan Suboptimal : Journal of Suboptimal Lands, 1(2). doi: 10.33230/JLSO.1.2.2012.20.