Coba jelasin Lihat pula dari Motor listrik dong

Houston, Edwin J.; Kennelly, Arthur, Recent Types of Dynamo-Electric Machinery, American Technical Book Company 1897, published by P.F. Collier and Sons New York, 1902

Rosenblatt, Jack; Friedman, M. Harold, Direct and Alternating Current Machinery, 2nd ed., McGraw-Hill, 1963