Title: How does a sound amplifier work? Author: Haryani Othman Subject: Sound--Juvenile literature--Bibliography Library resources--Singapore Science and technology>>Physics>>Sound Language: English Publisher: National Library Board Singapore, 2007-07-04 File Details: application/pdf Abstract: This resource guide provides the answer to the question "How does an amplifier work", with accompanying book and website recommendations relating to the topic. All Rights Reserved. National Library Board Singapore 2009.