Alcala, C. M., & Mallari, F. D. (2006). A user study on the frequently used Linux software applications in the electronic resources-General Reference Section of the University of the Philippines Diliman Main Library.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Alcala, Celeste M., و Florenda D. Mallari. A User Study on the Frequently Used Linux Software Applications in the Electronic Resources-General Reference Section of the University of the Philippines Diliman Main Library. Quezon City : Institute of Library and Information Science, University of the Philippines Diliman, 2006.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Alcala, Celeste M., و Florenda D. Mallari. A User Study on the Frequently Used Linux Software Applications in the Electronic Resources-General Reference Section of the University of the Philippines Diliman Main Library. 2006.