You can write an undergraduate course in your resume. Strictly speaking, you can't fill in an undergraduate course because you didn't graduate. But an informal resume can be written with a bachelor's degree, which is nothing more than reading.

All diplomas recognized by the state should be treated equally. But if you need to fill in your resume, you can also write correspondence education.

Correspondence is a learning form of adult higher education. Other learning forms of adult higher education include amateur learning (evening university) and full-time learning (full-time). Correspondence is also a teaching method. It belongs to a learning level of higher education, mainly according to the teaching plans of various majors, sending teachers to various correspondence stations to organize face-to-face lectures and examinations during winter and summer vacations or national legal holidays.