unistUndergraduate School Admissions

6. Copies of both parents' passports (or other official documents indicating parents' Nationality)

My question: My mom is a widow and there is an official document about it. She is Mongolian, it's on the passport. On my birth certificate, there is only my mom's name. My birth dad is Mongolian too, but there is no such information in "Mongolian Archive".

So in this situation, can I send my "REQUIRED DOCUMENTS" without my father's passport copy?

7. Certificate of facts concerning the entry and exit of the applicant
My question: Where Can I find this certificate?

8. Official document demonstrating parent-child relationship between the applicant and his/her parents
My question: My mom is a widow. My birth certificate certifies that me and my mom has a parent-child relationship. But there is no information about my father on my birth certificate.

-So will it be approved by UNIST, if I only send the official document demonstrating parent-child relationship between me and my mom?

10. Agreement for verification of academic record (Form 5)
My question: I hold a bachelor's degree in Mongolia, And I'm applying for an undergraduate degree program for UNIST.

-In this situation, Will it be approved if I send my Bachelor's Diploma copy? 

Thank you for your answers.