Ramazan, Farman J. “THE GOLDEN AGE OF DETECTIVE FICTION: GENRE CONVENTIONS OF AGATHA CHRISTIE’S COSY MYSTERIES”. Scientific Journal of Polonia University 49, no. 6 (January 18, 2022): 17-21. Accessed December 4, 2024. http://pnap.ap.edu.pl/index.php/pnap/article/view/806.