Balabanyan, Henry Electrical Engineering : Test-Book of Problems and Questions / Henry Balabanyan ; Min. of Educ. and Science of RA, NPUA. Institute of Electric. and pow. Eng. . Chair of EE and ED. - Yerevan : Chartaraget , 2017. - 76 p. ISBN: 978-9939-72-543-7 Subjects--Topical Terms: Electrical Engineering--Test-Book