● moralo Phepelo thulaganyou e phallo thehiloeng setšeng; ● Phepelo thepa motheo kotokaka le corollary tlhomelele paramethara; ● Phepelo tšehetso botekgeniki bakeng sa ho fetola thepa ya kopo; ● theko Litšenyehelo tsa ntlafatsoa thekenoloji; ● thekenoloji Long e telele tšehetso bakeng sa ho rarolla mathata.
