EWING, D. P. (1990). Buku latihan lotus 1.2.3. Erlangga.
Chicago Style (17th ed.) CitationEWING, David P. Buku Latihan Lotus 1.2.3. Erlangga, 1990.
MLA (8th ed.) CitationEWING, David P. Buku Latihan Lotus 1.2.3. Erlangga, 1990.
Warning: These citations may not always be 100% accurate.