Shiqu xiaoshou jihui de sishi ge yuanyin : 40 reasons why you lost that sale/

by Goh, David,
Published 1995

Jiechu tuixiaoyuan de mijue : tui xiao yuan zi li xi lie = the making of a super salesperson /

by Goh, David, Pastor,
Published 1995

Chuan xiao zhi fu de 52 zhong fang fa : ni ru he kuai su cheng gong de mi jue /

by Goh, David,, Cheng, gong bian ji qun,
Published 2000

Discovering Sabah /

by Hutton, Wendy,
Published 2002