APA Style

Newmark, A., Charvet, B, B. (2018). Makin Sedikit Makin Bahagia . Jakarta: PT Gramedia Pustaka Utama.

MLA Style

Newmark, Amy., Charvet, Brooke, Burke. "Makin Sedikit Makin Bahagia". Jakarta: PT Gramedia Pustaka Utama, 2018. Buku SMP Athalia.