Shukla, P., and V. Rangari. “ENHANCEMENT OF ANTI-DIABETIC ACTIVITY OF 4-HYDROXYISOLEUCINE IN COMBINATION WITH NATURAL BIOAVAILABILITY ENHANCERS”. International Journal of Pharmacy and Pharmaceutical Sciences, vol. 7, no. 4, Apr. 2015, pp. 302-6, https://journals.innovareacademics.in/index.php/ijpps/article/view/4369.