Carbonell, N. R., & Librero, F. (2005). Communication variables associated with utilization of upgraded goat production technology in Nueva Ecija, Philippines. Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Carbonell, Nenita R., و Felix Librero. "Communication Variables Associated with Utilization of Upgraded Goat Production Technology in Nueva Ecija, Philippines." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 2005.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Carbonell, Nenita R., و Felix Librero. "Communication Variables Associated with Utilization of Upgraded Goat Production Technology in Nueva Ecija, Philippines." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 2005.