“…Several studies have been conducted on citations (Harwood, 2009;Hu & Wang, 2014;Hyland, 1999;Jomaa & Bidin, 2016, 2017Mansourizadeh & Ahmad, 2011;Monreal & Salom, 2011;Nguyen & Pramoolsook, 2015, 2016Petric` & Harwood, 2013;Rabab'ah & Al-Marshadi, 2013;Rowley-Jolivet & Carter-Thomas, 2014;Samraj, 2013;Shi, 2012;Swales, 1990Swales, , 2014Thompson, 2001;Thompson & Tribble, 2001;Yang, 2013). These studies addressed the citations types, subcategories of the integral and non-integral citations, functions of citations, purposes of citations, reporting verbs in citations, roles of the cited author in the integral citation, and challenges in the citation process.…”