& et al., Hindersah. “REDUCING CHEMICAL FERTILIZER IN SWEET POTATO CULTIVATION BY USING MIXED BIOFERTILIZER”. IRAQI JOURNAL OF AGRICULTURAL SCIENCES 52, no. 4 (August 22, 2021): 1031–1038. Accessed November 22, 2024. https://jcoagri.uobaghdad.edu.iq/index.php/intro/article/view/1414.