Jiak Wong (食王) Bak Kut Teh is very common in northern region. Back to my hometown in Sungai Petani, there were two stalls having the same name. The same applies to Bukit Mertajam. I am not sure whether or not they have any relationship. Thinking of comparing those in BM, I visited 食王 (槟城) Good Master (Penang) recently.