Usullu, Özkan, et al. “THE INFLUENCE OF PERCEIVED QUALITY OF SERVICE OF TOURIST GUIDES ON THE BEHAVIORAL INTENTIONS: EXAMPLE OF ÇANAKKALE”. Taikomieji Tyrimai Studijose Ir Praktikoje - Applied Research in Studies and Practice, vol. 16, no. 1, Dec. 2020, pp. 84-97, https://ojs.panko.lt/index.php/ARSP/article/view/124.