TY  - BOOK
AU  - Khaliq, Humaira
AU  -  Dr. Shoab a Khan
TI  - Assessing the airline schedule perturbation and its recovery: A case of Pakistan international airlines (PIA) 
U1  - 620.005 
PY  - 2013///
CY  - Islamabad
PB  - CEME - NUST
KW  - Engineering Management MS-Thesis
ER  -