Sulfiani, S., Irwandy, I., Anggraeni, R. , Rivai, F. and Syamsuddin, S. 2026. Developing cost containment strategies for soft tissue tumor management using lean principles in hospitals. International Journal of Innovative Research and Scientific Studies. 9, 4 (Apr. 2026), 151–157. DOI:https://doi.org/10.53894/ijirss.v9i4.11531.