Maftukhah, Umi, et al. “Implementasi Algoritma Greedy Pada Pewarnaan Wilayah Kecamatan Sukodadi Lamongan”. UJMC (Unisda Journal of Mathematics and Computer Science), vol. 6, no. 2, Dec. 2020, pp. 29-38, doi:10.52166/ujmc.v6i2.2391.