1. Alvarez, F. J., Wilson, A., & Preston, T. R., 1977. Leucaena leucocephala as protein supplement for dual purpose milk and weaned calf production on sugar cane-based diets: comparisons with rice polishing. Tropical Animal Production, 3(1), 51-55.
2. Amata, I.A. 2014. The use of non-conventional feed resources (NCFR) for livestock feeding in the tropics: A review. Journal of Global Biosciences, 3(2), 604-613.
3. An, B. X., Hieu, L. T., & Preston, T. R., 1991. Multi-nutrient blocks (MUB) as supplement for milking cows fed forages of low nutritive value in South Vietnam. Livestock Research for Rural Development, 3(2), 1-7.
4. ANKOM. 2017a. Neutral detergent fiber in feeds - filter bag technique (for A2000 and A2000I). Available at: https://www.ankom.com/sites/default/files/document-files/Method_13_NDF_A2000.pdf Last accessed 16/11/2019.
5. ANKOM. 2017b. In vitro true digestibility method (IVTD - Daisy). Available at: https://www.ankom.com/sites/default/files/document-files/Method_3_Invitro_D200_D200I.pdf. Last accessed 16/11/2019.