Muhammad, A. ., Mahdi, Z. J. ., Jabor, A. ., Alwan, A. ., & salih, M. . (2014). Exploitation of solar energy as an alternative energy for milk sterilization from microbes. Journal of Biotechnology Research Center, 8(1), 33–36. https://doi.org/10.24126/jobrc.2014.8.1.297