Harini, N. D., S. Suyahmo, and E. Handoyo. “Work Ethic of Social Studies Teachers in the Implementation of Local Cultural Excellence of Tegal”. JESS (Journal of Educational Social Studies), Vol. 7, no. 2, Nov. 2018, pp. 177-84, http://journal.unnes.ac.id./sju/jess/article/view/27057.