Gaya APA
S, H, M, R.
(2014).
My Mysterious Pen Pals
(
Cet.1)
.
Bandung:
Muffin Graphics.
Gaya MLA
S, Helfrida, Miftakhur, Raifa.
"My Mysterious Pen Pals".
Cet.1
Bandung:
Muffin Graphics,
2014.
Buku Teks.