Utsogoleri Senken imapereka zinthu zapamwamba kwambiri kuti zithandizire pakuwunikira kwadzidzidzi komanso zochenjeza Za Senken Utsogoleri Mbiri Chikhalidwe Chitsimikizo cha System Titsatireni Chitsimikizo cha System Chitsimikizo cha Zamalonda Chitsimikizo cha Patent Ziyeneretso za Ulemu ulemu gawo_1 ku_2 ku_3 ku_4 ku_5