S., C., P., S., & O., M. (2017). The effect of leaderboard in different goal-setting levels.
استشهاد بنمط شيكاغوS., Chernbumroong, Sureephong P., و Muangmoon O. The Effect of Leaderboard in Different Goal-setting Levels. 2017.
MLA استشهادS., Chernbumroong, Sureephong P., و Muangmoon O. The Effect of Leaderboard in Different Goal-setting Levels. 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.