Nababan Esther S.M, Delvian Delvian, Siahaan Nelson, & Research India Publications. Environmental Performance Indicators of Oleo-Chemical Based Industrial Park in Indonesia, The Conceptual Model.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nababan Esther S.M, Delvian Delvian, Siahaan Nelson, و Research India Publications. Environmental Performance Indicators of Oleo-Chemical Based Industrial Park in Indonesia, The Conceptual Model.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Nababan Esther S.M, et al. Environmental Performance Indicators of Oleo-Chemical Based Industrial Park in Indonesia, The Conceptual Model.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.