Missing Yoruba Tapes

It Seems some tapes in the Yoruba language intermediate section are missing
From topic 11-20 (Yoruba intermediatare) not on the site.
How do I get to get them?
Expecting a response. Thanks.
From topic 11-20 (Yoruba intermediatare) not on the site.
How do I get to get them?
Expecting a response. Thanks.