Sara Khalid Al-Zahrani, and Tahar Tayachi. “THE RELATIONSHIP BETWEEN CREDIT DEFAULT SWAPS SPREADS AND CREDIT RATING ANNOUNCEMENTS: EMPIRICAL EVIDENCE FROM THE SAUDI MARKET”. PalArch’s Journal of Archaeology of Egypt / Egyptology, vol. 18, no. 13, May 2021, pp. 334-42, https://archives.palarch.nl/index.php/jae/article/view/8102.