N. F. N. Najdi, N. F. Khairul Adlee, A. A. Adnan, N. I. Mustafa Khalid, and S. Ismail, “EXPLORATORY DATA ANALYSIS ON HOUSEHOLD EXPENDITURE SURVEY 1998 AND 2014”, JHCD, vol. 12, no. 1, pp. 35–61, Jan. 2019.