Shenhai Kuphulika-Umboni
Mabokosi ogawa zowunikira osaphulika amagwiritsa ntchito imodzi mwa njira zitatu zotsatirazi:
1) khoma-wokwera pamwamba unsembe;
2) kuyika pansi;
3) unsembe wobisika khoma.
Zindikirani: Kusankha njira yoyika kuyenera kutengera malo achilengedwe, zofunika mphamvu, ndi kasinthidwe ka zida.