Dear ผศ. วิไล แพงศรี

Please forgive my ignorance in addressing you (improperly).

With your permission, may I call you Professor Vilai or Prof Vilai?

By the way, using some contents in my blog is more gratifying to me than addressing me "sir". I am trying to offload 'self trappings', though I would suggest using 'sir' and 'madam' in later sections of PSE .. ummh ... ;-)