Putra, R. D. ., E. . syofyan, T. . Kurniawati, E. . Fauzihardani, N. . Sebrina, and D. . Deviani. “A Revisiting Regional Development Efficiency in West Sumatra: A dea–bootstrap Analysis of Infrastructure and Human Capital Quality”. International Journal of Innovative Research and Scientific Studies, vol. 9, no. 4, Apr. 2026, pp. 59-70, doi:10.53894/ijirss.v9i4.11490.