Very Interesting studies. When I met my Thai wife in Thailand she was enrolled at King Mongut University for a PhD in Information Technology. Unfortunately, she had to withdraw from the program after I took her back to my country for marriage. We stayed out of Thailand for five years. Now back in Thailand she is again enrolled in a PhD program for Technology Management from a Thai University in Bangkok. This University is not ranked on the list posted on this forum. While back in my country she completed another Master's degree in computer science. She now has two. Even though she now has a good grasp of English in both reading, writing and speaking, it has been a tremendous struggle complete her PhD dissertation in English. I think a universities ranking means nothing to a student who's independent research involves outside sources of information.