Khattab, T., Haggag, K. M. (2017). 'Synthesis and Spectral Properties of Symmetrical and Asymmetrical 3-Cyano-1,5-diarylformazan Dyestuffs for Dyeing Polyester Fabrics', Egyptian Journal of Chemistry, 60(Conference Issue (The 8th International Conference of The Textile Research Division (ICTRD 2017), National Research Centre, Cairo 12622, Egypt.)), pp. 33-40. doi: 10.21608/ejchem.2017.1479.1103