MUTHIAH, K. (2010). IMPROVING STUDENTS’ ENGLISH SKILL THROUGH NUMBERED HEADS TECHNIQUE (A CLASSROOM ACTION RESEARCH AT THE SECOND YEAR STUDENTS OF SMP 8 MUHAMMADIYAH SURAKARTA IN 2009 / 2010 ACADEMIC YEAR).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)MUTHIAH, KHOTIM. IMPROVING STUDENTS’ ENGLISH SKILL THROUGH NUMBERED HEADS TECHNIQUE (A CLASSROOM ACTION RESEARCH AT THE SECOND YEAR STUDENTS OF SMP 8 MUHAMMADIYAH SURAKARTA IN 2009 / 2010 ACADEMIC YEAR). 2010.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)MUTHIAH, KHOTIM. IMPROVING STUDENTS’ ENGLISH SKILL THROUGH NUMBERED HEADS TECHNIQUE (A CLASSROOM ACTION RESEARCH AT THE SECOND YEAR STUDENTS OF SMP 8 MUHAMMADIYAH SURAKARTA IN 2009 / 2010 ACADEMIC YEAR). 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.