abdel hady, a. m., omara, a., & vlotman w. f. (2003). An Investigation of clay percentage at abu matamir area for envelope need deremination. drainage research institute.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিabdel hady, ahmed m., akmal omara, এবং vlotman w. f. An Investigation of Clay Percentage at Abu Matamir Area for Envelope Need Deremination. cairo: drainage research institute, 2003.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিabdel hady, ahmed m., et al. An Investigation of Clay Percentage at Abu Matamir Area for Envelope Need Deremination. drainage research institute, 2003.