Saiful Arif Abdullah, Shukor Md. Nor and Abdul malek Mohd Yusof.  (2014).  Understanding development trends and landscape changes of protected areas in Peninsular Malaysia: a much needed component of sustainable coservation planning.  - .  12/205-222. 

Saiful Arif Abdullah.  (2011).  The Characteristics of the Cultural Landscape in Malaysia: Concept and Perspective.  - .  41-53. 

Saiful Arif Abdullah, Abdul Malek Mohd Yusof & Shukor Md Nor.  (2009).  Conservation Status of Wildlife Protected Areas in Peninsular Malaysia: An Assessment Based on Landscape Approach.  - .  2/107-115.