Environment and Resource Management Project & Guy, P. (1995). Agroecosystem analysis and rapid rural appraisal of selected sites in the Central Cordillera, Ifugao, Philippines. ERMP, Institute of Environmental Science and Management, College of Arts and Sciences, University of the Philippines at Los Banos.

Environment and Resource Management Project and Peter Guy. Agroecosystem Analysis and Rapid Rural Appraisal of Selected Sites in the Central Cordillera, Ifugao, Philippines. College, Laguna: ERMP, Institute of Environmental Science and Management, College of Arts and Sciences, University of the Philippines at Los Banos, 1995.

Environment and Resource Management Project and Peter Guy. Agroecosystem Analysis and Rapid Rural Appraisal of Selected Sites in the Central Cordillera, Ifugao, Philippines. ERMP, Institute of Environmental Science and Management, College of Arts and Sciences, University of the Philippines at Los Banos, 1995.