Authors' surnames and
publication dates (and page information, if necessary) should be used when
referring to references. For example:
Ozcelik (2015) ...; Ozcelik (2015, p.
150) ...; Özçelik (2015, p. 182-186) ...;
According to Özçelik (2014) ...; According
to Özçelik and Tuncer (2014) ...; Özçelik and Tuncer (2014) ...; Özçelik et
al., (2016) (if there are three or more authors) ...
If more than one study is referred to at the
end of the sentence, these references should be given in parentheses in the
order of the year. For example: (Tuncer, 2004; Tuncer and Ozcelik, 2007; Tuncer
et al., 2009; Ozcelik, 2014).