1. Cytotoxic diterpenoid constituents from andrographis paniculata nees. leaves
P. SIRIPONG, B. KONGKATHIP, K. PREECHANUKOOL, P. PICHA, K. TUNSUWAN, AND W.C. TAYLOR

2. One-step synthesis of (+)-frontalin
AIM-ON SOMANABANDHU, NIJSIRI RUANGRUNGSI, GORDON L. LANGE AND MICHAEL G. ORGAN

3. Some characteristics of plants growing at the salt-affected area in northeast thailand
PONGSIRI PATCHARAPREECHA, NAYANA PUENGPAN, TERDSAK SUBHASARAM, AND HIDENORI WADAD

4. The influence of viscosity ratio on the morphology and mechanical properties of polyamide 6-natural rubber blends
F.H. AXTELL, P. PHINYOCHEEP, AND P. MONTHACHITRA