Open Science Research Excellence
Saptiadi Nugroho and  A. Nur Muhamad Afif,  Factors Affecting Employee Performance: A Case Study in Marketing and Trading Directorate, Pertamina Ltd..   journal   = {International Journal of Social, Behavioral, Educational, Economic, Business and Industrial Engineering}, [online]. World Academy of Science, Engineering and Technology. August 2014, vol. 92(8). 2801 - 2804[viewed 19 February 2019]. Available from: