Sundar

WP Projects Portfolio plugin helps managing projects to their portfolio page , this also has Request For Client Testimonial option with secure password protection that can be sent from the WP Admin Dashboard.
How does this work:
<ol>
<li>Once after installing & activating the WP Projects Portfolio plugin in the WP Admin Dashboard , Projects link will be displayed on left hand site of the menu column.</li>
<li>Add Projects with the form provided as you would normally do for a post.</li>
<li>Create a Portfolio Page , place a short code <code>[wp-projects-portfolio]</code></li>
<li>From the Projects Page in WP Admin , there will be an option to <code>Request Client Recommendation</code> & once you click on it , an email with the password along with the link 
to submit the recommendation will be sent.</li>
<li>The client upon receiving the email, he will be redirected to the Project page where he will be prompted to enter the password that is mailed to him.</li>
<li>Upon entering the correct password , he will be prompted with a form to submit his recommendations.</li>
<li>Once the recommendation is submitted , the admin will receive an email alert along with the link to approve it.</li>
<li>The admin can also view the Recommendations received by clicking the menu <code>Total CR-Received</code> & the Projects with new Recommendations will be displayed</li>
<li>Edit the Project page & at the bottom under Recommendation box , select the <code>Display in the website:</code> ON</li>
<li>Now the client recommendation for that particular project will be displayed under the Project details page on the Visitor side</li>
<li>You can also switch off , if you choose not to display the recommendation</li>
</ol>
Category based projects:
Display category based projects using category slug / name
[wp-projects-portfolio per_page=9 portfolio_type=’Magazine”]
Tested on:
<ul>
<li>PC Safari 🙂</li>
<li>PC Chrome 🙂</li>
<li>PC Firefox 🙂</li>
<li>PC ie7+ versions</li>
</ul>
Website
http://www.wpdeveloper.com/
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<h3>Version 3.0</h3>
Tested all functionality items with latest wp core and primary themes. 
= Version 1.1 
*Fixed file upload issues and completed compatibility updates 
= Version 1.1 
* Added feature to display category based projects using category slug / name 
* Integrated pagination option for category projects
<h4>Version 1.0.1</h4>
<ul>
<li>The required latest functions upgrade with WordPress version 3.8.1</li>
<li>Updated conditional statements , checked capabilities & fixed issues.</li>
</ul>

WP Projects Portfolio with Client Testimonials

WP Projects Portfolio helps to maintain Projects page with Client Testimonials submitted by the actual clients with Password Protection.

tomalrussell

This plugin is intended to provide a simple bibliography management tool, creating a ‘reference’ post and associating it with posts or pages.
<h4>Usage:</h4>
<ul>
<li>Create a new reference from ‘References’ in the admin sidebar.</li>
<li>Edit a page, add a reference using the ‘References’ metabox.</li>
<li>A list of properly-formatted references will be appended to the content of the page.</li>
</ul>

CASA Reference

Create or upload references, and associate them with posts.

WP Projects Portfolio with Client Testimonials vs CASA Reference