TY  - BOOK
AU  - Khan,Abul Fazar
TI  - Estimating = এস্টিমেটিং: principle and practice of estimating, schedule & tendering, costing and valuation 
U1  - 519.544 23
PY  - 1984///
CY  - Dhaka
PB  - Sabdik Publishers
KW  - Estimation theory
ER  -