Thiep, N. V., Soytong, K., Oanh, N. T. K., and Hung, P. M. “Study on nematodes (Pratylenchus spp.) on Arabica coffee in the Northwestern Vietnam”. International Journal of Agricultural Technology, vol. 15, no. 4, July 2019, pp. 675-84, https://li04.tci-thaijo.org/index.php/IJAT/article/view/8275.