APA Style

YUNINGSIH, Y., WARDANI, S. (2008). HAPPY WITH ENGLISH . Jl. Slamet Riyadi 48 H Surakar: PT. ERA PUSTAKA UTAMA.

MLA Style

YUNINGSIH, YUYUN., WARDANI, SUSILO. "HAPPY WITH ENGLISH". Jl. Slamet Riyadi 48 H Surakar: PT. ERA PUSTAKA UTAMA, 2008. Text.