Brihat Parashara Hora Shastra
भागा दश त्रयोऽष्टाश्व्यस्तिथ्योऽक्षा भमिता नखाः। उच्चात् सप्तमभं नीचं तैरेवांशैः प्रकीर्तितम्॥ ५०॥
The deepest exaltation degrees are, respectively, 10, 3, 28, 15, 5, 27 and 20 in those Rāśis. And in the seventh Rāśi from the said exaltation Rāśi each Grah has its own debilitation. The same degrees of deep exaltation apply to deep fall.
english translation
bhAgA daza trayo'STAzvyastithyo'kSA bhamitA nakhAH। uccAt saptamabhaM nIcaM tairevAMzaiH prakIrtitam॥ 50॥
hk transliteration by Sanscript