APA Format
Purba, Radiks
. (1997). Analisis biaya dan manfaat = Cost and benefit analysis. Jakarta : Rineka Cipta
MLA Format
Purba, Radiks
. Analisis biaya dan manfaat = Cost and benefit analysis. Jakarta : Rineka Cipta, 1997
Australian/Harvard Format
Purba, Radiks
. 1997. Analisis biaya dan manfaat = Cost and benefit analysis. Rineka Cipta, Jakarta
Warning: These citations may not always be 100% accurate.