Cheraporn Ruangcherachuporn และผู้แต่งคนอื่นๆ. (2001) Implementation of essential drug policy in public hospital. National Institute of Development Administration:ม.ป.ท.Cheraporn Ruangcherachuporn และผู้แต่งคนอื่นๆ. 2001. Implementation of essential drug policy in public hospital. ม.ป.ท.:National Institute of Development Administration;Cheraporn Ruangcherachuporn และผู้แต่งคนอื่นๆ. Implementation of essential drug policy in public hospital. ม.ป.ท.:National Institute of Development Administration, 2001. Print.