WAHYUNI, I. S., I. SUFIAWATI, W. NITTAYANANTA, and J. LEVITA. “THE DETERMINATION OF ETHYL P-METHOXY CINNAMATE IN KAEMPFERIA GALANGA L. RHIZOME EXTRACT HARVESTED IN RAINY AND DRY SEASONS”. International Journal of Applied Pharmaceutics, vol. 13, no. 4, Dec. 2021, pp. 132-5, doi:10.22159/ijap.2021.v13s4.43841.