Hello, it is the continuation from previous thread

I wanna my copyright file inside debian/usr/share/doc/myapp/ become correct and Ubuntu Software Center detect my DEB as Open Source. I've followed what Debian Packaging Pages here and as addition, Lintian doesn't say any ERROR or WARNING about my copyright file. But Ubuntu Software Center says unknown at License field when open my DEB.

Okay, I have done these:
1) copypaste another DEB's copyright file (I choose only no lintian error DEBs)
2) copypaste Debian Packaging Guide in copyright section examples (more than once)
3) edit them and accomplish the content

Problem:
Ubuntu Software Center doesn't detect my copyright when I open my DEB.

Question:
How to write correct copyright file? I need some exact example.

Attachment:
This is my copyright file content now:

Code:
Format: http://anonscm.debian.org/viewvc/dep/web/deps/dep5.mdwn?revision=174
Upstream-Name: myapp
Upstream-Contact: Ade Malsasa Akbar <teknoloid@gmail.com>
Source: http://malsasa.wordpress.com

Files: *
Copyright: 2013, Ade Malsasa Akbar (teknoloid@gmail.com)
License: GPL-3+
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 .
 This package is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 .
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 .
 On Debian systems, the complete text of the GNU General
 Public License version 3 can be found in `/usr/share/common-licenses/GPL-3'.

 
Files: debian/*
Copyright: 2013, Ade Malsasa Akbar <teknoloid@gmail.com>           
License: GPL-3+
 The Debian packaging information is under the GPL, version 3 or later
 On Debian systems, the complete text of the GNU General Public License
 version 3 can be found in `/usr/share/common-licenses/GPL-3'.