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শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিProceedings of the Symposium/workshop on Sustainable Alternative Livelihood (SAL), Balay Kalinaw, U.P. Diliman, Quezon City, November 10-11, 1994: Ma. Dulce M. Cacha, Noel R. Castelo and Joyceline A. Goco]. Quezon City: Foundation for Sustainable Development and the Environmental Center of the Philippines Foundation, 1995.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিProceedings of the Symposium/workshop on Sustainable Alternative Livelihood (SAL), Balay Kalinaw, U.P. Diliman, Quezon City, November 10-11, 1994: Ma. Dulce M. Cacha, Noel R. Castelo and Joyceline A. Goco]. Foundation for Sustainable Development and the Environmental Center of the Philippines Foundation, 1995.