I am interested in English dictionary that is available on the center book in Thailand that how many brands they have and how much are they? If order in a large numbers, they'll have a discount? I would like you to recommend that what is the best brand and how much is it? And pretty soon, there will have a new version available or not? if it has, when it comes to Thailand, how much dose it cost, it is a paperback or hardcover, and what is that size and weight?