Yildiz, Servet, Mehmet Emiroglu, and Onur Atalar. “Apricot Pip Shells Used As Aggregate Replacement”. Journal of Civil Engineering and Management 18, no. 3 (June 29, 2012): 318-322. Accessed June 17, 2019. https://journals.vgtu.lt/index.php/JCEM/article/view/4455.