Ho, Sook Wah Interactively speaking / Ho Sook Wah, Chan Swee Heng, Yap Ngee Thai - Serdang, Selangor : Penerbit UPM, 1998 - 154 p. : ill. ; 25 cm. ISBN: 9839319434 Subjects--Topical Terms: English language--Conversation and phrase books