1. öŒikahd R‰W¥òw NœÃiy¡F E©QÆ®fË‹ g§fË¥ò

nguháÇia: o. yÈjh FkhÇ
ïa¡Fd®, jhtuÉaš ca®fšÉ ika«, br‹id gšfiy¡ fHf«, br‹id,
jÄœehL, ïªâah.

2. e‹ik òÇí« E©DÆ®fŸ (EFFECTIVE MICROBES)

nguháÇa®: Í.v°.c‹Å»UZz‹ eha®