MSMA 1 #
One can refer to MSMA 1 at the official website here
MSMA 2 #
Here is the official guideline for Urban StormWater Management Manual for Malaysia Second Edition.
A mirror copy of the guideline can also be downloaded from here.
SUStoM (Sarawak Urban Stormwater Management manual), should be read in conjunction with the above MSMA 2, the guideline can be found here