Houache, O., R. Al-Maamari, B. Al-Rashidi, and B. Jibril. “Study of Date Palm Stem As Raw Material in Preparation of Activated Carbon”. The Journal of Engineering Research [TJER], vol. 5, no. 1, Dec. 2008, pp. 47-54, doi:10.24200/tjer.vol5iss1pp47-54.