Khadijah Said Hashim. The profiles of purpose in life (PIL) among high ability adolescents and their typical counterparts.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Khadijah Said Hashim. The Profiles of Purpose in Life (PIL) Among High Ability Adolescents and Their Typical Counterparts.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Khadijah Said Hashim. The Profiles of Purpose in Life (PIL) Among High Ability Adolescents and Their Typical Counterparts.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.