Hartanto, okiy. “INFLUENCE MOTIVATION, ABILITY, AND DISCIPLINE ON PERFORMACE EMPLOYEE DEPARTMENT SALES DAN MARKETING PT PIONIRBETON INDUSTRY JAKARTA”. JRMSI - Jurnal Riset Manajemen Sains Indonesia, Vol. 7, no. 1, Apr. 2016, pp. 56 -77, doi:10.21009/JRMSI.007.1.04.