Analysis and development of customer billing telephony system
By: Bidin, Raziera; Che Pa, Noraini; Qamar al-Din, Azrina. International Conference on Computing and Informatics (7th : 2019 : Bangkok, Thailand) Baghdad Science Journal. Vol. 16, no. 2 (عدد خاص) (2019), pp.428-435, 8 p.
Subjects: Communication systems; Customers; Telephone