Khalil, Khalid, AND 		Suleman, Younis.
" Scarification in Acetic Acid, Hot Water, and Cold Sand Stratification to Improve Carob (Ceratonia Siliqua L.) Seed Germination" <em>Tikrit Journal for Agricultural Sciences مجلة تكريت للعلوم الزراعية</em> [Online], Volume 19 Number 1 (17 April 2019)