Sajjad Hussain Qureshi ,Muhammad Danial Jan , Muhammad Sohaib Akram. Challenges During Conversion Of Cobol To Oracle Database In Multan Electric Power Company. Elementary Education Online [Internet]. 2020 Dec. 25 [cited 2025 Jan. 15];19(4):8299-303. Available from: https://ilkogretim-online.org/index.php/pub/article/view/7877