Hermawan, Aditiya, and Evan -. “The Hotel Recommendation System Using SAW (Simple Additive Weighting) And TOPSIS (The Technique for Order of Preference by Similarity to Ideal Solution) Method”. bit-Tech 1, no. 3 (May 25, 2019): 131-145. Accessed October 24, 2020. https://jurnal.kdi.or.id/index.php/bt/article/view/71.