Al Hemaid، A. A. I.، و Koranski، D. (1991). Holding Temperature, Transplant Time, and Plug Size Effects on Growth and Development of Vinca, Impatiens, Petunia, and Pansy Plants (رسالة ماجستير غير منشورة). Iowa State University، آيوا. مسترجع من http://search.mandumah.com/Record/611161
Al Hemaid، Abd Alrahman Ibrahim، و David Koranski. "Holding Temperature, Transplant Time, and Plug Size Effects On Growth and Development of Vinca, Impatiens, Petunia, and Pansy Plants" رسالة ماجستير. Iowa State University، آيوا، 1991. مسترجع من http://search.mandumah.com/Record/611161