Area Business Continuity Management integrates both private and public sectors under the concept of Public-Private Partnership against common risks including natural disasters while previous research mainly focused within private sectors or critical infrastructures. Its issue is that the broader range of heterogeneous stakeholders gets involved the more complex and ambiguous their connectivity becomes. Although, a bottom up approach has been proposed that identifies interdependency of stakeholders by aggregating their dependent activities on business continuities, a practical method has not been proposed yet. This research therefore designed a tangible method which enables to elicit dependencies of individual stakeholder by extending ideas of Business Impact Analysis and Risk Assessment. The proposed method was verified through a workshop conducted in an educational program of disaster risk management. It was observed that the method enables to identify not only external dependent activities with necessary management resources for business continuity but also timings of those occurrence in chronological order that would help finding interdependency among stakeholders for formulating Area-BCM.