“The Risk Assessment and Individual Performance of the Shares of Apple, Inc. And Microsoft Corporation”. REICE: Revista Electrónica de Investigación en Ciencias Económicas 6, no. 11 (July 9, 2018): 34–48. Accessed August 9, 2025. https://revistas.unan.edu.ni/index.php/reice/article/view/3934.