Mahdi1, Adnan Q., 		Al-Beyati2, Fawzi M., 		Al Tarif, A. M., 		H. Shendi4, El-Arabi, AND 		.Abdel-fattah4, Mohamed I.
" Palynofacies and Paleoenvironment investigation of the Hauterivian – Early Aptian Ratawi and Zubair formations, Balad oilfield, Central Iraq" <em>Tikrit Journal of Pure Science</em> [Online], Volume 24 Number 6 (3 November 2019)