H. B. . Al Baba, S. O. Gad-Allah, I. A. Algehani, and I. Azail, “Response of Two Summer Squash Hybrids to Graded Doses of Nitrogen Fertilization”, mjsc, vol. 17, no. 1, pp. 88–104, Mar. 2008, doi: 10.54172/mjsc.v17i1.846.