Strategi pemasaran pacto convex dalam menghadapi persaingan pasar Internasional (Studi kasus pengaruh industri meering, incentive, conference and Exhibition luar negeri terhadap pangsa industri meeting, incentive, conference and exhibition luar negeri terhadap pangasa pasar industri meeting, Incentive, conference and exhibition yang ada di Indonesia - Astri, D. Intansari (2004)