Ignatius Praptoraharjo, Ph.D is a research consultant at the Center for Health Policy and Management (CHPM), Faculty of Medicine, Gadjah Mada University Yogyakarta. He completed his doctoral program in 2010 at the Division of Health Policy Administration of the School of Public Health, University of Illinois at Chicago (UIC) and he was a recipient of the UIC-AIDS International Training and Research Program (AITRP) scholarship, Fogarty International Center, US National Institute of Health. He has worked in areas of HIV Policy and Programming for injecting drug users, male to female transgender, migrant workers and female sex workers since 1993. He spent most of his time working with local NGOs where he developed proposals and implemented AIDS programs for different populations. He was a national technical officer for harm reduction program of the Family Health International (FHI) – Indonesia in 2002-2006. Currently he serves as a Team Leader of The CHPM's Performance Management and Leadership Program for District Health Offices in Papua Province - a USAID-Kinerja funded Project. He also serves as a Senior Researcher at the AIDS Research Center, Atma Jaya Catholic University and a consultant for the National AIDS Commission,Ministry of Health, HCPI-AusAID, UNFPA and UNODC. His research interest is mainly on topics around social network analysis, social determinants of health and health policy particularly on HIV/ AIDS and marginalized populations.

Hersumpana is a researcher at the Center for Health Policy and Management (CHPM), Faculty of Medicine, Gadjah Mada University Yogyakarta. He works for the AIDS Project entitled “HIV/AIDS Policy and Programming within the Framework of Health System in Indonesia”, the Australia – Indonesia Partnership for HIV (AIPH), part of the Public Health Division. He studied Communication Science at the  faculty of Social and Political Sciences  of the Surakarta State University in 2007.  Since 1992 he was actively doing research in interdisciplinary field such as AIDS Prevention for the Night Entertainers (1994-1995) in collaboration with Soegijapranoto University, Central Java, Praxis of tradition and religious rites in the Cemetery in Surakarta (1994-1997), Theatre of the oppressed and social change (1995 – 1998) in collaboration with Surakarta Student Centre.  From 1999-2002, He worked for the National NGO (Caritas Indonesia) focusing on education of Indonesian remote areas.  Then he worked as field researcher at Realino Center Studies, Yogyakarta in 2002-2003. He was recipient of research fellow of the NIOD-LIPI research program on Indonesia Across Orders 1930-1960 from 2004 – 2005.  In 2006, he studied History at Post Graduate School of Gadjah Mada University. He wrote thesis on the social history of Bong Suwung Community, an illegal prostitution located in the ex - Chinesse Cemetery  along the railway Tugu Station, Yogyakarta. He is interested in interdisciplinary qualitative research on public health, urban poverty, public sphere, diversity and civil society empowerment.

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