Ervina, Nelly, Khairul Azwar, Elly Susanti, and Christine Dewi Nainggolan. 2022. “Effect Of Inflation, Exchange Rates, And Trading Volume Activity On Stock Price Indices During The Covid-19 Pandemic On Companies In The Basic Industry And Chemical Sectors”. International Journal of Science, Technology & Management 3 (6), 1650-58. https://doi.org/10.46729/ijstm.v3i6.693.