Asst. Tech. Afrah Oudah Sabeeh; Tech. Suhaila Juma Radi; Prof. Dr. Safaa Mohammed Hadi. APPLYING THE VALUE STREAM MAP (VSM) AS AN LEAN TOOL TO INCREASE VALUE ADDED AND ELIMINATE THE INHERENT WEST OF THE PRODUCTION SYSTEM A CASE STUDY AT THE IRAQI DRILLING COMPANY. Galaxy int. interdiscip. res. j. 2023, 11, 554-564.