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

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

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

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

Administrative law text and cases by De Leon, Hector S.

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

Table of contents only

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

Table of contents only

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

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

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

Table of contents only