Welly Jantika Tualaka, Tomycho Olviana, and Yakobus C. W. Siubelan. “Determinants of Lowland Rice Farming Profitability in a Semi-Arid Agroecosystem: A Regression-Based SmartPLS Analysis of the Sejahtera Farmer Group in Noelbaki, Indonesia”. International Journal of Economics, Business and Innovation Research, Vol. 5, no. 06, Oct. 2026, pp. 1233-51, doi:10.63922/ijebir.v5i06.6853.