Hesseling، PB (يوليو–أغسطس 1990). "Onyalai at Rundu, Namibia 1981-1988: age, sex, morbidity, mortality and seasonal variation of 612 hospitalized patients". Transactions of the Royal Society of Tropical Medicine and Hygiene. ج. 84 ع. 4: 605–7. DOI:10.1016/0035-9203(90)90057-l. PMID:2091364.
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"Onyalai".[[تصنيف:مقالات ذات وصلات خارجية مكسورة منذ {{نسخ:اسم_شهر}} {{نسخ:عام}}]][وصلة مكسورة]
Hesseling، PB؛ Smith, S؛ Oosthuizen, O؛ Amadhila, S (1994). "High dose methylprednisolone therapy in children with onyalai". Annals of Tropical Paediatrics. ج. 14 ع. 3: 239–43. PMID:7825998.
Hesseling، PB؛ Girdle-Brown, B؛ Smit, J (16 أغسطس 1986). "Onyalai--therapeutic effects of vincristine sulphate. A prospective randomized trial". South African medical journal. ج. 70 ع. 4: 201–2. PMID:3738655.
Hesseling، PB؛ Oosthuysen, E؛ Pretorius, L؛ Swart, A؛ Steynberg, J (13 أكتوبر 1984). "Splenectomy in onyalai. A report on 5 cases". South African medical journal. ج. 66 ع. 15: 580–2. PMID:6495094.
Hesseling، PB (يوليو–أغسطس 1990). "Onyalai at Rundu, Namibia 1981-1988: age, sex, morbidity, mortality and seasonal variation of 612 hospitalized patients". Transactions of the Royal Society of Tropical Medicine and Hygiene. ج. 84 ع. 4: 605–7. DOI:10.1016/0035-9203(90)90057-l. PMID:2091364.