Hutagalung, L., PURWANTO, A., & Prasetya, A. B. (2020). The Five Leadership Style in Time of Pandemic Covid-19 throughout Industrial Revolution 4.0 as compared to Humane Leadership. INTERNATIONAL JOURNAL OF SOCIAL, POLICY AND LAW, 1(1), 79-87. https://doi.org/10.8888/ijospl.v1i1.21