PRADEEP M. KULKARNI and DR. VINAYAK KALE, “OVERVIEW OF DIRECTION CONTROL VALVE WITH VARIOUS METERING NOTCHES”, Int. j. innov. eng. res. technol., vol. 7, no. 06, pp. 6–11, Jan. 2021, Accessed: Jul. 31, 2025. [Online]. Available: https://repo.ijiert.org/index.php/ijiert/article/view/308