Lal, D. (1969). Adhunik bal manovigyan. Rajpal & Sons.
Lua i Stíl Chicago (17ú heag.)Lal, D. Adhunik Bal Manovigyan. NULL: Rajpal & Sons, 1969.
Lua MLA (9ú heag.)Lal, D. Adhunik Bal Manovigyan. Rajpal & Sons, 1969.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.