Siswo. (2004). HRD and its critical factors according to practitioners in the training division of Telkom Indonesia. Texas A&M University.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Siswo. HRD and Its Critical Factors According to Practitioners in the Training Division of Telkom Indonesia. College Station, Texas: Texas A&M University, 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Siswo. HRD and Its Critical Factors According to Practitioners in the Training Division of Telkom Indonesia. Texas A&M University, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.