GOWDA, N K S, et al. “Nutrient Utilization and Plasma Mineral Level in Sheep Fed Diets With Different Calcium and Phosphorus Ratios With Ragi (Eleusine Coracana) Straw As a Roughage Source”. The Indian Journal of Animal Sciences, vol. 78, no. 9, Mar. 2011, https://epubs.icar.org.in/index.php/IJAnS/article/view/4844.