Estacode (Civil Establishment code) : a compendium of laws, rules, regulations and instructions relating to the terms and conditions of federal civil servants / corrected & modified by Zaka Ali.

Vol. I. Terms & conditions of service of the civil servants
Recruitment, appointment, seniority and promotion
Transfers, postings and deputations
Termination of services, reversion to lower grade/post, resignation & desertion form duty
Leave
Retirement & Re-employment
Merger of services/cadres into a unified graded structure
Rules & procedures applicable to occupational groups
Vol. II. Conduct, efficiency & discipline
Pay, allowances & other benefits
General provident fund
Benovolent fund and group insurance
Appeals, petitions and representations
Federal public service comission
Service tribunals
Pension and gratuity.