“Study of the effect of physical factors on the activity of biosurfactants produced by the strains Pseudomonas aeruginosa KIB and Rhodococcus ruber KL4” (2015) Experimental biology, 59(3/1), pp. 227–231. Available at: https://bb.kaznu.kz/index.php/biology/article/view/697 (Accessed: 11 September 2026).