1. ABB, “A dozen ways to measure fluid level.” Oct. 2022.
2. Ultrasonic instrumentation system for liquefied petroleum gas level monitoring;Zakaria;J Nat Gas Sci Eng,2017
3. Instrumentation reference book;Boyes,2009
4. Fundamentals of industrial instrumentation and process control;Dunn,2018
5. Virtual techniques for liquid level monitoring using differential pressure sensors;Nikolov;Recent,2008