Ukushintsha Kwesimo Sezulu

Yini ngempela esiyaziyo ngokuguquguquka kwesimo sezulu? Edwetshwe umdwebi wopopayi uRico, lolu chungechunge lopopayi lokufundisa lulethwa kuwe ngokuhlanganyela nenhlangano yokuguquguquka kwesimo sezulu.
Khetha upopayi ukuze uwukhulise