1 files changed, 2 insertions, 0 deletions

diff --git a/README.md b/README.md
index 313e155..dbc074e 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 - <https://five-embeddev.com/riscv-user-isa-manual/Priv-v1.12/rv32.html#rv32>
 - <https://files.magnusson.space/random/riscv-instruction-sheet-3.pdf>
+- <https://www.cs.sfu.ca/~ashriram/Courses/CS295/assets/notebooks/RISCV/RISCV_CARD.pdf>
+- <https://drive.google.com/file/d/1uviu1nH-tScFfgrovvFCrj7Omv8tFtkp/view>, s. 609