Khare A, Baghel R P S, Gupta R S, Nayak S, Khare V, Patil A, Sharma R, Tomar R and Singh V P 2014: Milk production of indigenous cattle fed supplements of mustard oil cake or azolla meal (Azolla filiculoides). Livestock Research for Rural Development. Volume 26, Article #65. Retrieved , from http://www.lrrd.org/lrrd26/4/khar26065.html