NIM:E01205005. Bibliografi hlm.108-110.
NIM:B05207027. Bibliografi hlm.99-100.
NIM:A02208033. Bibliografi hlm. 62-63.
NIM:A02208011. Bibliografi hlm. 91-92.
Calender Is one of human civilization products. Human attention on the nature make them thought that nature has specific characters that can be signed because of its continuity. As the result of th…