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Surname Jasa (Jasa
, Яса
) , in all the world, is quite a common last name. The last name Jasa is habitual in Armenia, where it is quite a common surname, Slovenia, where it is quite a rare surname, and Czechia. Measured by absolute frequency, it is the most numerous in Indonesia, Philippines, and India. Also, Jasa is the forename as well as the last name.