Download links for the article:
Google docs (go to the link, click File in the PDF window, then click Download):
https://docs.google.com/file/d/0B4SoPFPRNziHb3VrX3JhWko3d1E/edit
Scribd link: http://www.scribd.com/doc/207498741/Automatic-Voltage-Stabilizer-with-PIC16F873A
4shared download link: http://www.4shared.com/office/ktU0k9dqba/Voltage_Stabilizer.html
Google docs (go to the link, click File in the PDF window, then click Download):
Youtube videos of the automatic voltage stabilizer (in Bangla and in English):