Walujo, P. B. Kumpulan makalah/kuliah utama kongres obstetri dan ginekologi Indonesia VII & kongres masean chapter of obstetrics and gynaecology I = The seventh Congress of Indonesia Obstetrics and Gynaecology & the first Congress of Masean chapter of Obstetrics: Proceedings. [s.n.], 1987.
Παραπομπή σε μορφή Chicago (17η εκδ.)Walujo, Pantjer Budhi. Kumpulan Makalah/kuliah Utama Kongres Obstetri Dan Ginekologi Indonesia VII & Kongres Masean Chapter of Obstetrics and Gynaecology I = The Seventh Congress of Indonesia Obstetrics and Gynaecology & the First Congress of Masean Chapter of Obstetrics: Proceedings. [s.l.]: [s.n.], 1987.
Παραπομπή σε μορφή MLA (9th εκδ.)Walujo, Pantjer Budhi. Kumpulan Makalah/kuliah Utama Kongres Obstetri Dan Ginekologi Indonesia VII & Kongres Masean Chapter of Obstetrics and Gynaecology I = The Seventh Congress of Indonesia Obstetrics and Gynaecology & the First Congress of Masean Chapter of Obstetrics: Proceedings. [s.n.], 1987.