For me, I did not manage to find the SBST version of 10 and
SMRT version of 61.
Long time did not go Tampines Interchange since June 2009.
So, I still keep the SBS version and TIBS version of 10 and 61
respectively.
By the way, the 61 bus guide was the thickest one.
I know 61 bus guides still can be found inside office, but I did
not bother to ask and get for it.