Questionnaires, Get job holders to fill out to describe their duties, OBSERVATION, Watching and taking notes the job holders' physical activities, PARTICIPANT DIARIES, Job holders keep a log about all activites they do in a routine day.

Ilg'orlar ro'yxati

Vizual uslub

Moslamalar

Namunani almashtirish

Tahrirlashni davom ettirish: ?