ข้อ 49 :ASTRO-MOON-# PART 1 -CONCEPT 2-MOON ORBIT-MOON PHASE ดวงจันทร์โคจรรอบโลก ทำให้เกิดข้างขึ้นข้างแรม

http://astro.unl.edu/animationsLinks.html#ca_ancientastro

LUNAR PHASE SIMULATOR
http://astro.unl.edu/classaction/animations/lunarcycles/lunarapplet.html

Extended Mission: Follow the Moon
https://10minuteastronomy.wordpress.com/2009/08/26/extended-mission-follow-the-moon/

http://kaskushootthreads.blogspot.com/2015/01/apakah-kita-membutuhkan-bulan_73.html

http://hdimagelib.com/moon+phases+diagram

http://www.astronomynotes.com/nakedeye/s13.htm

http://slideplayer.com/slide/3622779/