An Investigation of clay percentage at abu matamir area for envelope need deremination /

I tiakina i:
Ngā taipitopito rārangi puna kōrero
Ētahi atu kaituhi: abdel hady, ahmed m. (auther.), omara, akmal (auther.), vlotman w. f. (auther.)
Hōputu: Pukapuka
Reo:Ingarihi
I whakaputaina: cairo : drainage research institute, 2003.
Ngā marau:
Ngā Tūtohu: Tāpirihia he Tūtohu
Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!