Implementasi Program Evaluation and Review Technique (PERT) dan Project Risk Failure Mode and Effect Analysis (RFMEA) Untuk Optimalisasi Nilai Turn Around Time (TAT) Proyek Heavy C-check B-737 NG di PT GMF Aeroasia - , Anugroho Narotomo Gartam ([Yogyakarta] : Universitas Gadjah Mada, 2012)