Porntip Thamwinitchai. (1997) The performances of 0.028 cc ionization chamber and radiographic film for dosimetry in stereotactic radiosurgery. Mahidol University,:ม.ป.ท.Porntip Thamwinitchai. 1997. The performances of 0.028 cc ionization chamber and radiographic film for dosimetry in stereotactic radiosurgery. ม.ป.ท.:Mahidol University,;Porntip Thamwinitchai. The performances of 0.028 cc ionization chamber and radiographic film for dosimetry in stereotactic radiosurgery. ม.ป.ท.:Mahidol University, 1997. Print.