Agyapong, D. ., Atuah, T. S. ., & Idun, A. A.-. A. . (2020). Calendar Effect and Returns of Listed Companies on the Ghana Stock Exchange: A DOLS and GARCH Modelling. Asian Economic and Financial Review, 10(8), 920–935. https://doi.org/10.18488/journal.aefr.2020.108.920.935