Mu rwego rwo gucukumbura uburyo bushya bwo gucunga, gushimangira urwego rw’imicungire y’isosiyete, no kuzamura umusaruro n’ishusho y’isosiyete, ku ya 24 Nyakanga, inama yo gutangiza itsinda rya Yonker Group 6S (SEIRI, SEITION, SEISO, SEIKETSU , SHITSHUKE, UMUTEKANO) ...