Zaimoğlu, A. (2015). 'The Effect of Randomly Distributed Polypropylene Fibers Borogypsum Fly Ash and Cement on Freezing-Thawing Durability of a Fine-Grained Soil'. World Academy of Science, Engineering and Technology, Open Science Index 104, International Journal of Civil and Environmental Engineering, 9(8), 1116 - 1120.