Protokol perusahaan kumpulan petunjuk ringkas tentang etika bisnis = Corporate protocol : a brief case for business etiquette / Valerie Grant-Sokolosky; penerjemah Soeharri

Business etiquette : an essential guide for executives / Sally Chew

Pelatihan how to become a super HERO untuk meningkatkan psychological capital dan job performance pada karyawan Instansi TCA = How to become a super HERO training to increase psychological capital and job performance of TCA Institution Employees

Make your contacts count: networking know-how for business and career success

Kiss, bow, or shake hands, sales and marketing : the essential cultural guide--from presentations and promotions to communicating and closing