Motivatsiya va dalda ikki asosiy manbalardan kelib chiqadi, ya'ni ichki motivatsiya (individual) va qo'shimcha motivatsiya (mukofot yoki jazo kabi tashqi omillardan olingan motivatsiya).
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10 Qiziqarli Fakt About The psychology of motivation and drive

10 Qiziqarli Fakt About The psychology of motivation and drive