%0 Journal Article %A Muhammad Akram Ramadhan Ibrahim %A Nor Izzati Jaini %A Hafizah Bahaludin %T A Study of Oil and Gas Producers Subsector Portfolio Using the Trade-off Ranking Method %J Yugoslav journal of operations research %D 2025 %P 69 %V 35 %N 1 %U http://geodesic.mathdoc.fr/item/YJOR_2025_35_1_a3/ %G en %F YJOR_2025_35_1_a3