Salman Ahmed Shaikh, Muhammad Hakimi Mohd. Shafiai, Abdul Ghafar Ismail & Mohd Adib Ismail.  (2016).  Exploring efficiency, co-integration, causality and volatility clustering in unrestricted and islamic portfolios.  - .  101-122. 

Nik Mohd Azim Nik Ab Malik, Muhammad Hakimi Mohd Shafiai.  (2016).  Pengupayaan ekonomi 'ummah tersisih' melalui instrumen wakaf.  - .  47-72. 

Muhammad Hakimi Mohd Shafiai, Amira Ajeerah Mohd Samsi.  (2015).  The Applicability of Islamic Commercial Law in Developing Agricultural Land for Greater Equality.  - .  357-378.