[4] ROFA Education Center. (2017). Kunci Jawaban. [Online]. Diakses dari http://www.rofaeducationcentre.com/2017/07/kunci-jawaban-jarak-bumi-dan-pluto.html
[5] Hamzah, Abay Abu. (2009). Menggenggam Bara Islam. Yogyakarta: Roudhah Pustaka Yogyakarta.
[6] An-Nabhani, Taqiyyudin. (2001). Peraturan Hidup dalam Islam. Jakarta Selatan : HTI-Press.
[7] Moore, Keith dkk. (2000). Human Development as Described in the Quran and Sunnah.
[8] Kurnadi, Kemal Adyana. (2011). Dasar-dasar Anatomi dan Fisiologi Tubuh Manusia. Bandung: Jurusan Pendidikan Biologi, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam, Universitas Pendidikan Indonesia.
[9] Islam Mental Site. (2015). Eating Using Hand as The Prophet Muhammad Proved to be Healthier than Using Spoon and Fork. [Online]. Tersedia https://plus.google.com/+IengalwaysBlogspot/posts/4eforFUBmCt
[10] Saputra, Rendy. (2012). Muda Mulia. Bandung: Mizan Pustaka
