| 
Pangruruk T.A. 
Mulawarman University
East Borneo, Indonesia
Pangruruk T.A. --- Mr. (Sc.), Assist. Professor, Department of Statistics, Mulawarman University (Jalan Barong Tongkok No. 4 Kampus Gunung Kelua, Samarinda-Kalimantan Timur, 75119 Indonesia).
Все статьи автора