Syaifuddin, M. A., and L. Ardini. “IMPROVING THE COMPETITIVENESS OF SONGKOK’S SMALL AND MEDIUM INDUSTRIES (SMI) IN GRESIK DISTRICT THROUGH ENTREPRENEURIAL MARKETING”. International Conference of Business and Social Sciences, vol. 1, no. 1, Oct. 2020, https://debian.stiesia.ac.id/index.php/icobuss1st/article/view/70.