Kelkay, B. D. and G/Yohannes, E. (2014) “The Application of Garch Family Models for Agricultural Crop Products in Amhara Region, Ethiopia”, Journal of Science, Technology and Arts Research, 3(4), pp. 49–58. Available at: https://journals.wgu.edu.et/index.php/star/article/view/465 (Accessed: 12 November 2024).