Hermawan, R., E. . Pangestuti, G. . Artono, and S. Supriono. “The Tourism Supply Chain Management: Case Study on Mount Kelud, Kediri Regency”. International Journal of Green Tourism Research and Applications, vol. 5, no. 2, Dec. 2023, pp. 108-13, doi:10.31940/ijogtra.v5i2.108-113.