Pitayapan Pattanaphonpaibool. 1993. Chemical modifications of ecdysteroids. Faculty of Science, Ramkhamhaeng University;
Pitayapan Pattanaphonpaibool. (1993) Chemical modifications of ecdysteroids . Ramkhamhaeng University/Bangkok.
Pitayapan Pattanaphonpaibool. Chemical modifications of ecdysteroids. . Bangkok:Ramkhamhaeng University, 1993.
Pitayapan Pattanaphonpaibool. (1993) Chemical modifications of ecdysteroids . Ramkhamhaeng University/Bangkok.