Gaya APA

Saputra, S., Saputra, H. (2009). Kindergarten English : 300 graded exercises to help children find English learning easy and fun . Tanggerang: Quality Press.

Gaya MLA

Saputra, Stella., Saputra, Heidi. "Kindergarten English : 300 graded exercises to help children find English learning easy and fun". Tanggerang: Quality Press, 2009. Text.