TY  - BOOK
AU  - Ghazaryan,H.
AU  - Badadyan,M.
AU  - Nikoghosyan,G.
ED  - Ministry of Education and Science State Engineering University of Armenia (Polytechnic)
TI  - English: for graduate students 
SN  - 9789939558912
PY  - 2013///
CY  - Yerevan
PB  - Chartaraget
KW  - English language
KW  - Handbooks
ER  -