Valkenburgh, Van Asas Elektrik Buku 3 Van Valkenburgh - Petaling Jaya,Selangor International Book Services 2001 Petaling Jaya,Selangor International Book Services 2001 - iii, 143p. 23cm Landasan Bookseller ISBN: 9789679500516 RM16.20 Subjects--Topical Terms: Electricity