Não informado. (1963). Journal of Small Business Management. National Council for Small Business Management Development.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিNão informado. Journal of Small Business Management. Morgantown, Wa. Va: National Council for Small Business Management Development, 1963.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিNão informado. Journal of Small Business Management. National Council for Small Business Management Development, 1963.
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