Rendra poems:

Khotbah -- W.S. Rendra
https://www.youtube.com/watch?v=Dytmgo2V0rE = Komunitas Seni Etnis: Macapat then (03:48) Khotbah oleh Rendra

Paman Doblang

https://youtu.be/3iREDLPRgKE -- as sung by Iwan Fals
 

Another reading:

https://youtu.be/_y3mGw7mq_Q