Piengthong Narakorn,Piengthon Narakorn. 1996. The study of efficacy and safety of a novel hair tonic. Faculty of Graduate Studies, Mahidol University;
Piengthong Narakorn,Piengthon Narakorn. (1996) The study of efficacy and safety of a novel hair tonic . Mahidol University/Bangkok.
Piengthong Narakorn,Piengthon Narakorn. The study of efficacy and safety of a novel hair tonic. . Bangkok:Mahidol University, 1996.
Piengthong Narakorn,Piengthon Narakorn. (1996) The study of efficacy and safety of a novel hair tonic . Mahidol University/Bangkok.