The venue for ICSSST 2019 is the Everly Hotel Putrajaya, Malaysia at which the participant will be able to benefit from a special rate by following these instructions. 

http://icssst19.upnm.edu.my/index.php/general/accommodation

Everly Hotel, Putrajaya, Malaysia

http://teg-hotels.com/b/everly-putrajaya/

If you prefer to book you own room, here are some other nearby hotels.

Pulse Grande Hotel

http://www.pulsegrande.com.my/pgp1/

Dorset Putrajaya

https://www.dorsetthotels.com/en/dorsett-putrajaya/index.html