Khoiriah, Sabina Latifatul, and Wardhani Utami Dewi. “The Impact of Tobacco Production and Cultivated Area on the GRDP of the Agricultural Sector in Lampung Province: A Multiple Linear Regression Analysis”. Symmetry & Sigma: Journal of Mathematical Structures and Statistical Patterns, vol. 1, no. 2, Dec. 2024, pp. 165-82, https://doi.org/10.58989/symmerge.v1i2.28.