SALES FORCE PRODUCT KNOWLEDGE & PERFORMANCE WITH INTERVENING ROLE OF SELF-EFFICACY AND MODERATING ROLE OF SUPERVISORY SUPPORT: THE CASE OF BANK ISLAMI PAKISTAN 2022 Issue December 2022 علمیات July 11, 2023April 23, 2024Rizwan Mughal Muhammad Nouman Hameed, Dr. Muhammad Ahmed Pages: 106-128