1. CPLD-oriented design projects for the first course in digital systems;D J Ahlgren;FIE'98. 28th Annual Frontiers in Education Conference,1998
2. Development Strategies of the Bahari Jawai Marine Tourism Coast Area Based on Community Empowerment in Sambas Regency;B Agam;IOP Conference Series: Earth and Environmental Science,2021
3. Sustainable development in the Cameron highlands;C J Barrow;Malaysia. Malaysian Journal of Environmental Management,2005