1. Factors influencing blood steroid hormone levels in relation to egg shell quality. Ph.D. Diss.;Abdullah,1979
2. Radioimmunoassay of chicken progesterone;Abdullah;Poultry Sci.,1979
3. La mue des oiseaux et son determinisme endocrinien;Assenmacher;Alauda,1958
4. Effect of stressing factors on corticosterone levels in the plasma of laying hens;Beuving;Gen. Comp. Endocrinol.,1978
5. Free-running, entrained and resynchronized circadian rhythms of plasma corticosterone and locomotor activity in the quail;Boissin;Int. J. Chronobiol.,1975