Polycarp, M. (2005). Impacts of rural - urban interaction on rural community, agricultural practices and mechanization, and land use: A case study of Bidayuh community in Kampung Stass, Kampung Skibang, Kampung Sebobok and Kampung Serasot, Bau. Faculty of Social Sciences.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Polycarp, Maybal. Impacts of Rural - Urban Interaction on Rural Community, Agricultural Practices and Mechanization, and Land Use: A Case Study of Bidayuh Community in Kampung Stass, Kampung Skibang, Kampung Sebobok and Kampung Serasot, Bau. Faculty of Social Sciences, 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Polycarp, Maybal. Impacts of Rural - Urban Interaction on Rural Community, Agricultural Practices and Mechanization, and Land Use: A Case Study of Bidayuh Community in Kampung Stass, Kampung Skibang, Kampung Sebobok and Kampung Serasot, Bau. Faculty of Social Sciences, 2005.