“The Effect of Single Co-expression of The DnaK-DnaJ-GrpE and GroEL/ES Chaperones and Their Combination on Expression Intein-pretrombin-2 in Escherichia coli ER2566”, Valensi, vol. 6, no. 1, pp. 47–54, May 2020, doi: 10.15408/jkv.v6i1.11333.