1. 1. Agbede I. F, Akuto T., Tiza M.T, & Ugama T.I. (2016). International Research Journal of Engineering and Technology. Production of Concrete Roofing Tiles Using Rice Husk Ash (RHA) In Partial Replacement of Cement.3(6)
   2. Ahangba Augustine, and Tiza Michael. "Partial Replacement of Cement with Corn Cob Ash." International Journal for Innovative Research in Multidisciplinary Field 2.7 (2016): 159-166. Print.
   3. Ajila, C. M., Aalami, M., Leelavathi, K. & Prasada Rao, U. J. S. 2010. Mango Peel Powder: A Source of Antioxidant and Dietary Fibre in Macaroni Preparations
   4. Edeh, J., Tyav, S., and Osinubi., K (2014) Cassava Peel Ash stabilized Lateritic Soil as Highway Pavement Material. Pavement Materials, Structures, and Performance. Pp 375-378
   5. Gajera, N. V., & Thanki, K. R. (2015). Stabilization Analysis of Black Cotton Soil by using Groundnut Shell Ash. International Journal for Innovative Research in Science & Technology, 2(1).
   6. Indian Road Congress. (2012). Guidelines for the design of flexible pavements (Third Revision). 7. Khanna, S.K., Justo, C.E., & Veeraragavan, A. (2015). Highway Engineering (10th Ed.). Roorkee; Nem Chand & Bro