SUBRAMANIYAM, V. (2011). ELECTRIC DRIVES (2ND.). TATA McGRAW HILL.
Lua i Stíl Chicago (17ú heag.)SUBRAMANIYAM, V. ELECTRIC DRIVES. 2ND. NEW DELHI: TATA McGRAW HILL, 2011.
Lua MLA (9ú heag.)SUBRAMANIYAM, V. ELECTRIC DRIVES. 2ND. TATA McGRAW HILL, 2011.
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