(1996). Statistik Gas Kota = City Gas Statistics 1991-1995. Biro Pusat Statistik.
Chicago Style (17th ed.) CitationStatistik Gas Kota = City Gas Statistics 1991-1995. Biro Pusat Statistik, 1996.
MLA (8th ed.) CitationStatistik Gas Kota = City Gas Statistics 1991-1995. Biro Pusat Statistik, 1996.
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