I. P. F. Rorong, T. O. Rotinsulu, D. Mandeij, M. R. Manulusi, and A. N. M. Lumi, “Sectoral Public Expenditure and Income Inequality in Indonesia: A Spatial Panel Approach ”, j. of economics, entrepreneurship, manag. bus. and account., vol. 4, no. 4, pp. 683–700, Jul. 2026.