Nur Hayati, Siti Musyarofah. The Development of a Religious Tourism Business Model – Blue Ocean Strategy Approach to Increase Regional Original Revenue in Madura Regency. DE [Internet]. 2021Dec.2 [cited 2024May2];:2028 -2041. Available from: http://www.thedesignengineering.com/index.php/DE/article/view/7148