Villason, N. A., & Olguera, D. T. (2020). Physico-chemical characteristics of soils under cacao production system in Davao de Oro, Philippines134. Southeastern Philippines Journal of Research and Development.
Čikaški stil citiranja (17. izdanje)Villason, Nelvin A., i Dernie T. Olguera. "Physico-chemical Characteristics of Soils Under Cacao Production System in Davao De Oro, Philippines134." Southeastern Philippines Journal of Research and Development 2020.
MLA način citiranja (9. izdanje)Villason, Nelvin A., i Dernie T. Olguera. "Physico-chemical Characteristics of Soils Under Cacao Production System in Davao De Oro, Philippines134." Southeastern Philippines Journal of Research and Development, 2020.
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