The law on income taxation with illustrations, problems, and solutions 著者: De Leon, Hector S., De Leon, Hector M., Jr

Comments and cases on credit transactions 著者: De Leon, Hector S.

The corporation code of the Philippines annotated 著者: De Leon, Hector S.

The Philippine negotiable instruments law and allied laws annotated 著者: De Leon, Hector S.

Administrative law text and cases 著者: De Leon, Hector S.

The law on sales, agency, and credit transactions 著者: De Leon, Hector S., De Leon, Hector M.

Table of contents only

The law on partnerships and private corporations 著者: De Leon, Hector S.

Table of contents only

The law on income taxation with illustrations, problems, and solutions 著者: De Leon, Hector S.

The law on transfer and business taxation with illustrations, problems, and solutions 著者: De Leon, Hector S.

The law on negotiable instruments with documents of title 著者: De Leon, Hector S.

Table of contents only