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Adri Sallo, Inggriani Elim and Lidia Mawikere 2024. Contribution Margin Analysis as a Tool for Profit Planning in the PT Labiva Jaya Utama Travel Services Business in Parepare. Indonesian Journal of Advanced Research. 3, 4 (Apr. 2024), 425–448. DOI:https://doi.org/10.55927/ijar.v3i4.8742.