Osooli, Hassan, Karimi, Ahmad, shirani, Hossein, Tabatabaei, Sayyed Hassan. “The effect of type,  particle size and amount of biochar on some physical and mechanical properties of calcareous soil.” Journal of Water and Soil Resources Conservation, vol. 11, no. 1, 2021, pp. 113-128. 10.30495/wsrcj.2021.18548