Abunyawan, J., Atienza, N., & Salisi, M. (1979). Coffee production and marketing: Western Visayas. Special Studies Division, Dept. of Agriculture.
Lua i Stíl Chicago (17ú heag.)Abunyawan, J.D, N.R Atienza, agus M.M Salisi. Coffee Production and Marketing: Western Visayas. Quezon City: Special Studies Division, Dept. of Agriculture, 1979.
Lua MLA (9ú heag.)Abunyawan, J.D, et al. Coffee Production and Marketing: Western Visayas. Special Studies Division, Dept. of Agriculture, 1979.
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