TY  - BOOK
AU  - Khan, Abul Fazar.
TI  - Estimating: principle and practice of estimating, schedule & tendering, costing and valuation for students & professional 
U1  - 519.287 KHA 23
PY  - 2008///
CY  - Dhaka
PB  - Sabdik Publishers, 
KW  - Estimating probabilities
N1  - Includes index
ER  -