Alswid, Samara, and Manal Issa. 2017. “Study The Effect of Conditions of The Electro Spinning Cabin (Humidity) on Electro-Spun PolyVinyl Alcohol (PVA) Nano-Fibers”. Al-Nahrain Journal for Engineering Sciences 20 (3): 520-25. https://nahje.com/index.php/main/article/view/241.