Ramirez, E. V. (1989). Handbook on obligations and contracts (Latest ed.). Distributed by Visayan Educationa Supply.
Chicago-viite (17. p.)Ramirez, Efren V. Handbook on Obligations and Contracts. Latest ed. Cebu City: Distributed by Visayan Educationa Supply, 1989.
MLA-viite (9. p.)Ramirez, Efren V. Handbook on Obligations and Contracts. Latest ed. Distributed by Visayan Educationa Supply, 1989.
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