ardialis, Sarjon Defit, and Gunadi Widi Nurcahyo. “Decision Support System in Identification of Swallow’s Nest Quality With Weighted Product Method: Sistem Pendukung Keputusan Dalam Identifikasi Kualitas Sarang Burung Walet Dengan Metode Weighted Product”. SYSTEMATICS, vol. 3, no. 1, Sept. 2021, https://journal.unsika.ac.id/systematics/article/view/5552.