“Optical Properties and Morphological Study of New Films Derived From Poly(Vinyl Chloride)-Phenyl Phrine HCl Acid Complexes”. Al-Nahrain Journal of Science 19, no. 2 (May 30, 2018): 51–57. Accessed May 2, 2024. https://anjs.edu.iq/index.php/anjs/article/view/232.