Bismark Addai, Annette Serwaa Agyeman, Adjei Gyamfi Gyimah. Modelıng the volatılıty of stock returns Usıng arma and garch models. IJAST [Internet]. 2020Jun.1 [cited 2024May5];29(7):8465-7. Available from: http://sersc.org/journals/index.php/IJAST/article/view/24892