مخلوفي مريم, و حاجي اسحاق زكرياء. 2023. "The Impact of Covid-19 Pandemic on Transportation - the Rail Transportation Company As a Case Study-". المجلة الجزائرية للأمن والتنمية Algerian Review of Security and Developement 12 (01):363-82. https://doi.org/10.59791/arsd.v12i01.3148.