Marka dhumucda eebeebka birta kululeeyahaderbigu wuu ka duwan yahay, gaasaska magdhowga ayaa loo isticmaali karaa si wax looga qabto.

1. Dhumucda gidaarka birta birta waa la dhumucdi karaa ama la dhuuban karaa si loo gaaro dhumucda loo baahan yahay.

2. Marka dhumucda gidaarka birta ee birta ay tahay mid aan iswaafaqayn, boolal-xoog badan iyo dhaqdhaqaajiyaal ayaa loo isticmaali karaa si loo magdhabo dhumucda gidaarka birta ee aan joogtada ahayn si loo gaaro dhumucda loo baahan yahay.

3. Marka dhumucda derbiga birta birta ay iswaafaqayn, hababka alxanka ayaa sidoo kale loo isticmaali karaa si loo magdhabo si loo gaaro dhumucda loo baahan yahay.