Choky Sitohang Speaking Incorporation (ChoSSI) is a training institution in Communication, specialized in Public Speaking. It is established in Jakarta as a member of PT. Edutama Victorindo.
ChoSSI committed to contribute in intellectual life of the nation through education, by actively providing training, seminars, special assistance (mentoring) on Public Speaking as part of every individual's ability to communicate, which is very important and can determine the success of inter-personal relationship.