Penpan Ganpinyo. 1993. Reactions of 20-hydroxyecdysone with acids and bases. Department of Chemistry, Ramkhamhaeng University;
Penpan Ganpinyo. (1993) Reactions of 20-hydroxyecdysone with acids and bases . Ramkhamhaeng University/Bangkok.
Penpan Ganpinyo. Reactions of 20-hydroxyecdysone with acids and bases. . Bangkok:Ramkhamhaeng University, 1993.
Penpan Ganpinyo. (1993) Reactions of 20-hydroxyecdysone with acids and bases . Ramkhamhaeng University/Bangkok.