Widyastuti, Indri, et al. “Implementation of Lean Hospital in Reducing Waiting Time for Outpatients’ Medication at the Pharmacy Installation of Dr. Saiful Anwar Regional Hospital (RSSA) East Java”. JFIOnline | Print ISSN 1412-1107 | E-ISSN 2355-696X, vol. 17, no. 1, Jan. 2025, pp. 82-92, doi:10.35617/jfionline.v17i1.343.