ingalls, w. Masa-masa sulit. Elex media.
Chicago Style (17th ed.) Citationingalls, wilder. Masa-masa Sulit. Elex media.
MLA (8th ed.) Citationingalls, wilder. Masa-masa Sulit. Elex media.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation