00646nam a22002297a 4500 20230609074926.0 230609b2021 ph ||||| |||| 00| 0 eng d 9786210404302 NORSU-Sia 346.59902 D3777 Hector S. De Leon The Law on Obligations and Contracts 12 Ed. Manila Rex Bookstore 2021 xvii, 453p. Illustrated 25cm x includes bibliographies Law Obligations and contracts Law -- Philippines Hector M. De Leon, JR. ddc BK 0 1 1