Elsi Dwi, Septiani, Lika Fernanda Aprillia, Hidayah Fernanda Aprillia, and Taufiqqurrachman Fahrizal. “Analysis of Economic Base and Sector Growth Contribution Between Sidoarjo Regency and East Java Province: LQ, DLQ, and Shift-Share Approaches”. Journal of Research in Economics and Social Science 2, no. 1 (April 14, 2025): 100–113. Accessed May 2, 2026. https://jurnal.cendanaofficial.com/index.php/jress/article/view/436.