Penus Leonard Roningsih Sinurat, Vivi Safira, and Melvany Agustini Sinurat. “Analysis of Determining the Leading Sectors of the Regional Economy of Labuhan Batu Regency: LQ and Shift Share Approach”. Outline Journal of Economic Studies 4, no. 1 (March 9, 2025): 42–53. Accessed September 14, 2025. https://journal.outlinepublisher.com/index.php/OJES/article/view/248.