Shelton, K. (1997). In Search of Quality: 4 perspektif unik, 43 wawasan berbeda. Gramedia Pustaka Utama.
Chicago Style (17th ed.) CitationShelton, Ken. In Search of Quality: 4 Perspektif Unik, 43 Wawasan Berbeda. Gramedia Pustaka Utama, 1997.
MLA (8th ed.) CitationShelton, Ken. In Search of Quality: 4 Perspektif Unik, 43 Wawasan Berbeda. Gramedia Pustaka Utama, 1997.
Warning: These citations may not always be 100% accurate.