Gaya APA
Marsoli, L, A. (2014).
Welcome to Royal Prep = Selamat Datang di Royal Prep (Level 1).
Jakarta:
Gramedia Pustaka Utama.
Gaya MLA
Marsoli, Lisa, Ann.
"Welcome to Royal Prep = Selamat Datang di Royal Prep".
Level 1
Jakarta:
Gramedia Pustaka Utama,
2014.
Book.