Purnama Sari Palupessy, Direktur Sang Akar Institute, banyak melakukan penelitian dengan fokus pada isu pendidikan, teknologi, perempuan, dan ketenagakerjaan di Indonesia. Ia juga aktif dalam kerja-kerja advokasi pekerja perempuan, serta pemberdayaan masyarakat seperti pengembangan komunitas.  Purnama seorang penulis artikel, naskah film pendek, naskah teater, dan bahkan sutradara. Lewat tulisan, ia menyuarakan isu-isu perempuan hingga ketenegakerjaan.  Makalah yang telah diterbitkan antara lain Upaya PRT Mewujudkan Kerja Layak: Belajar, Berserikat dan Berjuang diterbitkan oleh Jurnal Perempuan.

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Purnama Sari Palupessy, Director of the Sang Akar Institute, conducts research with a focus on the issues of education, technology, women and employment in Indonesia. She is also active in advocacy work for women workers, as well as community empowerment such as community development.  Purnama is an article writer, short film script, theater script, and even director. Through writing, she voiced women's issues to employment.  Papers that have been published include Upaya PRT Mewujudkan Kerja Layak: Belajar, Berserikat dan Berjuang  (Efforts of Domestic Workers to Achieve Decent Work: Learning, Networking and Fighting) published by Jurnal Perempuan (Journal of Women).