Ahmednabiev, Rasul, et al. “High-Strength Concretes With Use of Ashes and Slag Waste of Circulating Fluidized Bed Boilers for Road Products”. International Journal of Engineering & Technology, vol. 7, no. 4.8, Oct. 2018, pp. 124-9, https://doi.org/10.14419/ijet.v7i4.8.27226.