Koster, A. S., Debbie Daisy Natalia, & Orpinas, J. (2016). Belle's friendship invention: Penemuan persahabatan Belle. Jakarta: Gramedia Pustaka Utama.
Chicago Style CitationKoster, Amy Sky, Debbie Daisy Natalia, and Jean-Paul Orpinas. Belle's Friendship Invention: Penemuan Persahabatan Belle. Jakarta: Gramedia Pustaka Utama, 2016.
MLA CitationKoster, Amy Sky, Debbie Daisy Natalia, and Jean-Paul Orpinas. Belle's Friendship Invention: Penemuan Persahabatan Belle. Jakarta: Gramedia Pustaka Utama, 2016.
Warning: These citations may not always be 100% accurate.