Yio Chu Kang Terminal dun have Svc guides racks but you can try
the perm buses, for me I got my svc 76 guides from SBS5037M.
Grabbed 3 extra copies.
Got 5 Svc 72 guides as well, who want? Accurate as of 13 Aug
2012
Got 2 Svc 116 guides today from a Citaro, and I rode on that
Citaro to visit my grandmother's old house.
Lol, that Citaro you mentioned still have stacks of 116
guides! 
