CLARK, H. Mary higgins dan carol Higgins. Gramedia Pustak.
Chicago Style (17th ed.) CitationCLARK, Higgins. Mary Higgins Dan Carol Higgins. Gramedia Pustak.
MLA (8th ed.) CitationCLARK, Higgins. Mary Higgins Dan Carol Higgins. Gramedia Pustak.
Warning: These citations may not always be 100% accurate.