Gunara, Thorik Marketing cara Rasulullah SAW / Thorik Gunara & Utus Hardiono Sudibyo - Edisi Bahasa Malaysia - Kuala Lumpur : Synergy Media, [2011] - xiv, 154 p. : ill. ; 22 cm. Bibliografi : p. 143-145 ISBN: 9789673713271 RM16.90 Subjects--Personal Names: Muhammad, Prophet, d. 632 --Ethics Subjects--Topical Terms: Business ethics--Religious aspects--Islam