[1]
Setyaningrum, I.R. and Sitorus, P.M. 2015. Efficiency Measurement of Maintenance Costs on Customer Service Process PT Indonesia Comnets Plus West Java. TRIKONOMIKA : Jurnal Ekonomi. 14, 2 (Dec. 2015), 138–142. DOI:https://doi.org/10.23969/trikonomika.v14i2.411.