Analisa faktor risiko sistem persediaan material yang berpengaruh terhadap kinerja biaya proyek pembangunan jalan pada perusahaan jasa konstruksi di kota Kupang = Analysis the factors risk of material inventory system that affected to the performance cost project road construction by the construction services company in city Kupang / Matelda Christiana Mauta - Matelda Christiana Mauta, author (2013)