Sopater,Sularso. Pembelajaran memasuki era kesejagatan. PT.Pustaka Sinar Harapan.
Chicago Style (17th ed.) CitationSopater,Sularso. Pembelajaran Memasuki Era Kesejagatan. PT.Pustaka Sinar Harapan.
MLA (8th ed.) CitationSopater,Sularso. Pembelajaran Memasuki Era Kesejagatan. PT.Pustaka Sinar Harapan.
Warning: These citations may not always be 100% accurate.