Abbott, A. creator text S.l.] Heinemann 1989 5th ed. monographic 624 p. ; The latest edition takes into account the requirements for the West African Examinations Council, the Hong Kong School Certificate, the East African Examnations Council and the Singapore Ministry of Education. Semiconductor devices and their applications are becoming increasingly important in physics courses at this level. To reflect this, the fifth edition includes a substantial amount of new material on logic gates and their uses. physics 530 ABB 043567014X (paperback) 9780435670146 (paperback) http://www.amazon.com/exec/obidos/ASIN/043567014X/chopaconline-20 http://www.amazon.com/exec/obidos/ASIN/043567014X/chopaconline-20