ardialis, Sarjon Defit, & Gunadi Widi Nurcahyo. (2021). 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, 3(1). Retrieved from https://journal.unsika.ac.id/index.php/systematics/article/view/5552