Bertham, Y. H., Nusantara, A. D., Andani, A., Anandyawati, A., and Herman, W. “The improvement of coastal soil fertility using soil conditioner from biocompost inoculated with phosphate-solubilizing microbes, Bradyrhizobium and arbuscular mycorrhizal fungi to increase soybean production”. International Journal of Agricultural Technology, vol. 16, no. 3, May 2020, pp. 575-88, https://li04.tci-thaijo.org/index.php/IJAT/article/view/6998.