Famdan, Famdan, and Arif Hartono. “The Influence of Leadership Style & Environment on Employee Performance With Work Motivation As a Mediation Variable PT. Unilab Perdana”. Journal Research of Social Science, Economics, and Management, vol. 2, no. 3, Oct. 2022, pp. 301-10, doi:10.59141/jrssem.v2i03.270.