Fernando, E. S., & Cereno, R. P. (2011). Mt Pulag National Park: Conserving biodiversity and natural resources on Luzon's highest mountains. ASEAN-Korea Environmental Cooperation Unit (AKEKU). National Instrumentation Center for Environmental Management. College of Agriculture and Life Sciences, Seoul National University.

Fernando, Edwino S., and Roberto P. Cereno. Mt Pulag National Park: Conserving Biodiversity and Natural Resources on Luzon's Highest Mountains. Korea: ASEAN-Korea Environmental Cooperation Unit (AKEKU). National Instrumentation Center for Environmental Management. College of Agriculture and Life Sciences, Seoul National University, 2011.

Fernando, Edwino S., and Roberto P. Cereno. Mt Pulag National Park: Conserving Biodiversity and Natural Resources on Luzon's Highest Mountains. ASEAN-Korea Environmental Cooperation Unit (AKEKU). National Instrumentation Center for Environmental Management. College of Agriculture and Life Sciences, Seoul National University, 2011.