“Phenotypic Study With Counting the Number of Chromosomes of the Female Gametophyte of the Fern Salvinian Natans”. Journal of the College of Basic Education 18, no. 73 (January 21, 2023): 779–788. Accessed July 18, 2024. https://cbej.uomustansiriyah.edu.iq/index.php/cbej/article/view/9618.