I found a similar Indonesian article on http://mimbarkata.blogspot.co.id/2014/04/umar-khayyam-saintis-dan-penyair.html
Not indicate the source, is considered plagiarism.
Some tips to share content from 
- Using a few sentences from your source in “quotes.” Use HTML tags or Markdown.
- Linking to your source
- Include your own original thoughts and ideas on what you have shared.
Explanation please.
Looking to profit from other people's work, it's not good ...!
RE: deleted