Currency exchange rate (average buying rate), according to the daily reference rate for the Bank of Thailand Thai declared in the calculation of foreign currency into Thai each day (on the day of the issuance of tax invoices)
Currency (Average buying rate) as a reference for the Bank of Canada announced in the conversion of foreign currency into Thailand each day. (The date of the invoice).
Exchange rate (the average buying rate). According to the daily reference rate of declared in the calculation of เป็นเงินตรา Thai foreign currency on a daily basis. (on the invoice).