Setyani K, Ciptomulyono U. Proposed Improvement of Trans Semanggi Suroboyo Services Using IPA and QFD Methods. Hasanuddin Econ. Bus. Rev. [Internet]. 2024 Oct. 31 [cited 2025 Sep. 9];8(2):69-84. Available from: http://pasca.unhas.ac.id/ojs/index.php/hebr/article/view/5553