Calderon, M. M., Dizon, J. T., Bantayan, N. C., Sajise, A. J. U., Codilan, A. L., & Salvador, M. G. (2010). Payments for environmental and cultural services and the conservation of the Ifugao Rice Terraces.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিCalderon, Margaret M., Josefina T. Dizon, Nathaniel C. Bantayan, Asa Jose U. Sajise, Analyn L. Codilan, এবং Myranel G. Salvador. Payments for Environmental and Cultural Services and the Conservation of the Ifugao Rice Terraces. 2010.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিCalderon, Margaret M., et al. Payments for Environmental and Cultural Services and the Conservation of the Ifugao Rice Terraces. 2010.
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