00315nam a2200085Ia 4500008004100000021001200041100002400053245009300077264005900170230517s9999 xx 000 0 und d aSHS11571 aBajao, Grayfield T.10aFront office operations : ba guide to effective customer service /cBajao, Grayfield T. aQuezon City : bWiseman's Books Trading, Inc., c2020.