Minh Trung, D. et al. 2021. Cloning and expression of \(\textit{ pigI}\) gene in \(\textit{Escherichia coli}\) BL21 (DE3). Academia Journal of Biology. 43, 3 (Sep. 2021), 59–67. DOI:https://doi.org/10.15625/2615-9023/15836.