Hutagalung, L., PURWANTO, A., Prasetya, A. B., & Pramono, R. (2020). TRANSFORMATIONAL LEADERSHIP FOR ENTERING INDUSTRIAL REVOLUTION 4.0 AS COMPARED WITH HUMANE LEADERSHIP AND ā€œUā€ THEORY. INTERNATIONAL JOURNAL OF SOCIAL, POLICY AND LAW, 1(1), 73-78. https://doi.org/10.8888/ijospl.v1i1.20