Valkenburgh, Van Asas elektrik : buku dua / by Van Valkenburgh. - Ed. Keenam. - Petaling Jaya, Selangor Darul Ehsan : IBS Buku Sdn. Bhd., © 2015. - 143 pages : illustrations ; 25 cm. Includes index. Malay. ISBN: 9789679500561 RM 55.00 Subjects--Topical Terms: Electricity Dewey Class. No.: 537/VAL