APA Style

Kristiani, D. et al (2019). Koin-Koin Erin (First Edition). Jakarta Barat, Indonesia: PT ASTA Ilmu Sukses.

MLA Style

Kristiani, Dian. et al. "Koin-Koin Erin". First Edition Jakarta Barat, Indonesia: PT ASTA Ilmu Sukses, 2019. Printed Book.