Tashtoush, Hasan, Sameer Bataineh, and Mahmoud Al-Talib. 2010. “Synthesis of 1,4- and 1,3-Bis-(5-Alkylthio-1,3,4-Oxadiazol-2-Yl) Benzenes”. Asian Journal of Chemistry 13 (1):111-18. https://asianpubs.org/index.php/ajchem/article/view/22535.