Yusuf, Asnidar Hanim and Oyelakin, Oyewale Idris and Abdul Shukor, Syadiyah and Ahmad Bustamam, Ummi Salwa (2017) Role of halal certification in business performance: A study of the kopitiams industry. In: Sintok International Conference on Social Science and Management (SICONSEM 2017), 4-5 December 2017, Adya Hotel, Langkawi Island, Kedah, Malaysia.