R. . G. Cambel, “Construction of a Statistical Index as a Measure of a Country’s Multidimensional Development”, IJSBAR, vol. 54, no. 5, pp. 138–147, Dec. 2020, Accessed: Jun. 24, 2026. [Online]. Available: https://gssrr.org/JournalOfBasicAndApplied/article/view/12118