So, I did my research about it and might as well share it to you.
How to Place Google Adsense on each of my Blogger.com or Blogger Post?
1. Go to your Google Adsense account and create an Ads code.
2. Copy the code then go to http://blogcrowds.com/resources/parse_html.php to Parse your Ads code. Take note that if your code is not Parsed, it will not work.
3. Copy the Parsed code.
4. Go to you Blogger.com account > Design > Edit HTML.
5. Tick the box of "Expand Widget Template"
6. Find this code "<data:post.body/>
7. Just above it, paste the Parsed Adsense code with a wrapping code "<div style='float: right;'>" at the beginning and "</div>" at the end.
<div style='float: right;'>
Paste your parsed adsense code here
8. If you want your ads displayed at the right side of your post, change the wrapping "float:right" to "float:left".
9. You're now done with the coding, then SAVE TEMPLATE.
10. View your blog, the ads may appear after 10 minutes.