APA Style
haji, J, A. (2011).
Regeneration of English Used Oils by Solvent Extraction :mater .
Erbil:
Salahaddin Yniversity.
MLA Style
haji, Jalal, Abdullah.
"Regeneration of English Used Oils by Solvent Extraction :mater".
Erbil:
Salahaddin Yniversity,
2011.
Text.